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Experiments that are part of the NOP teaching module are shown on a grey background
NOP-No Title Substance classes Reaction type Techniques Difficulty
Yellow light 2003 Acid catalyzed acetalisation of 3-nitrobenzaldehyde with ethanediol to the correspondent 1,3-dioxolane aldehyde, acetal, alcohol, protecting group, acid catalyst reaction of the carbonyl group in aldehydes, acetalisation removal of water by azeotropic distillation, heating under reflux with Soxhlet extractor (for 10 mmol preparation), stirring with magnetic stir bar, evaporating with rotary evaporator, shaking out, extracting, recrystallizing, filtering, heating with oil bath Easy
Yellow light 5004 Acid catalyzed acetalisation of 3-nitrobenzaldehyde with ethanediol to the correspondent 1,3-dioxolane aldehyde, acetal, alcohol, protecting group, acid catalyst reaction of the carbonyl group in aldehydes, acetalisation microwave-assisted reaction, stirring with magnetic stir bar, heating under reflux, distillation, introduction of gas, shaking out, extracting, evaporating with rotary evaporator, filtering, recrystallizing Medium
Red light 1001 Nitration of toluene to 4-nitrotoluene, 2-nitrotoluene and 2,4-dinitrotoluene nitroaromatics, aromatics electrophilic substitution of aromatics, nitration of aromatics distilling under reduced pressure, adding dropwise with an addition funnel, working with wash bottles, extracting, shaking out, recrystallizing, filtering, evaporating with rotary evaporator, stirring with magnetic stir bar, draining of gases, use of a cooling bath, heating with oil bath Difficult
Yellow light 5026 Oxidation of anthracene to anthraquinone aromatics, quinone oxidation mechanochemical reaction, grinding with a planet ball mill, filtering, evaporating with rotary evaporator Easy
Yellow light 3021 Oxidation of anthracene to anthraquinone aromatics, quinone oxidation stirring with magnetic stir bar, evaporating with rotary evaporator, filtering, recrystallizing Easy
Green light 1021 Isolation of trimyristin from nutmeg carboxylic acid ester, triglyceride, natural product isolation of natural products extracting with Soxhlet extractor, evaporating with rotary evaporator, recrystallizing, filtering, heating under reflux, heating with oil bath, stirring with magnetic stir bar Easy
Green light 5019 Isolation of trimyristin from nutmeg carboxylic acid ester, triglyceride, natural product isolation of natural products microwave-assisted extraction, recrystallizing, filtering, evaporating with rotary evaporator Medium
Green light 4010 Synthesis of p-methoxyacetophenone from anisole aromatics, carboxylic acid anhydride, acid catalyst electrophilic substitution of aromatics, Friedel-Crafts acylation, reaction of the carbonyl group in carboxylic acid derivatives heating under reflux, stirring with magnetic stir bar, filtering, evaporating with rotary evaporator, distilling under reduced pressure, heating with oil bath Easy
Yellow light 1035 Synthesis of p-methoxyacetophenone from anisole aromatics, carboxylic acid anhydride, acid catalyst electrophilic substitution of aromatics, Friedel-Crafts acylation, reaction of the carbonyl group in carboxylic acid derivatives working with cover gas, adding dropwise with an addition funnel, shaking out, extracting, filtering, distilling under reduced pressure, evaporating with rotary evaporator, stirring with magnetic stir bar, heating with oil bath Medium
Unclear 4027 Synthesis of 11-chloroundec-1-ene from 10-undecen-1-ol chloroalkane, alcohol nucleophilic substitution heating under reflux, stirring with magnetic stir bar, adding dropwise with an addition funnel, distilling under reduced pressure, draining of gases, working with wash bottles, use of an ice cooling bath, cooling with liquid nitrogen, heating with oil bath Medium
Unclear 4025 Synthesis of 2-iodopropane from 2-propanol iodoalkane, alcohol nucleophilic substitution heating under reflux, stirring with magnetic stir bar, working with wash bottles, shaking out, extracting, filtering, draining of gases, distilling, heating with oil bath Easy
Unclear 4024 Enantioselective synthesis of (1R,2S)-cis-hydroxycyclopentane-carboxylic acid ethyl ester carboxylic acid ester, ketone, alcohol, enzyme, natural product reduction, stereoselective reduction stirring with magnetic stir bar, adding dropwise with an addition funnel, working with a thermostat, filtering, evaporating with rotary evaporator, extracting, perforating, rectifying, use of a distillation column, distilling under reduced pressure, heating with oil bath, stirring with a propeller stirrer Difficult
Unclear 4001 Transesterification of castor oil to ricinoleic acid methyl ester carboxylic acid ester, triglyceride, renewable resources, basic catalyst reaction of the carbonyl group in carboxylic acid derivatives, transesterification stirring with magnetic stir bar, evaporating with rotary evaporator Easy
Unclear 2002 Acid catalyzed acetalisation of acetoacetic acid ethyl ester with ethanediol to the corresponding 1,3-dioxolane ketone, alcohol, acetal, protecting group, acid catalyst reaction of the carbonyl group in ketones, acetalisation removal of water by azeotropic distillation, stirring with KPG stirrer, filtering, evaporating with rotary evaporator, distilling under reduced pressure, fractionating column distillation, rectifying, heating with oil bath, stirring with magnetic stir bar Easy
Unclear 2004 Diastereoselective reduction of benzoin with sodium borohydride to 1,2-diphenyl-1,2-ethanediol ketone, alcohol, complex metal hydride reaction of the carbonyl group in ketones, reduction, stereoselective addition stirring with magnetic stir bar, adding dropwise with an addition funnel, evaporating with rotary evaporator, filtering, recrystallizing, heating with oil bath Medium
Unclear 2023 Reduction of D-(+)-camphor with lithium aluminum hydride to a isomeric mixture of (+)-borneol and (-)-isoborneol ketone, alcohol, complex metal hydride, natural product reaction of the carbonyl group in ketones, reduction, stereoselective addition working with moisture exclusion, stirring with KPG stirrer, adding dropwise with an addition funnel, heating under reflux, filtering, evaporating with rotary evaporator, sublimating, use of a cooling bath, heating with oil bath Difficult
Unclear 1006 Bromination of 4-ethoxyacetanilide (phenacetin) to 3-bromo-4-ethoxyacetanilide aromatics, bromoaromatics, aryl ether electrophilic substitution of aromatics, bromination stirring with magnetic stir bar, adding dropwise with an addition funnel, filtering, recrystallizing, heating with oil bath Easy
Unclear 1009 Intramolecular acylation of 4-phenylbutyric acid to 1,2,3,4-tetrahydronaphthalen-1-one (alpha-tetralone) carboxylic acid, aromatics, ketone electrophilic substitution of aromatics, ring closure reaction, Friedel-Crafts acylation, reaction of the carbonyl group in carboxylic acids extracting, shaking out, evaporating with rotary evaporator, filtering, rectifying, column distillation, distilling under reduced pressure, heating with oil bath, column chromatography Easy
Unclear 1010 Intramolecular acylation of 3-phenylpropionic acid to 2,3-dihydroindan-1-one (alpha-indanone) carboxylic acid, aromatics, ketone electrophilic substitution of aromatics, ring closure reaction, Friedel-Crafts acylation, reaction of the carbonyl group in carboxylic acids extracting, shaking out, evaporating with rotary evaporator, filtering, rectifying, column distillation, distilling under reduced pressure, heating with oil bath, column chromatography Easy
Unclear 2006 Reaction of (R)-(-)-carvone with benzylamine in the presence of montmorillonite K-10 to a Schiff's base ketone, amine, Schiff's base, natural product, acid catalyst reaction of the carbonyl group in ketones removal of water by azeotropic distillation, stirring with magnetic stir bar, filtering, distilling under reduced pressure, evaporating with rotary evaporator, heating with oil bath Medium
Unclear 3005 Synthesis of 7,7-dichlorobicyclo[4.1.0]heptane (7,7-dichloronorcarane) from cyclohexene alkene, carbene, chloroalkane addition to alkenes, elimination, cycloaddition stirring with magnetic stir bar, adding dropwise with an addition funnel, distilling under reduced pressure, evaporating with rotary evaporator, shaking out, extracting, filtering, use of an ice cooling bath, heating with oil bath Easy
Unclear 2008 Acid catalyzed esterification of propionic acid with 1-butanol to propionic acid butyl ester carboxylic acid, carboxylic acid ester, alcohol, acid catalyst reaction of the carbonyl group in carboxylic acids, esterification removal of water by azeotropic distillation, shaking out, extracting, filtering, fractionating column distillation, rectifying, stirring with magnetic stir bar, heating with oil bath Easy
Unclear 2013 Reaction of cinnamic acid with thionyl chloride to cinnamoyl chloride carboxylic acid, carboxylic acid chloride reaction of the carbonyl group in carboxylic acids working with moisture exclusion, stirring with magnetic stir bar, draining of gases, working with wash bottles, distilling under reduced pressure, heating with oil bath Medium
Unclear 2017 Reaction of cinnamoyl chloride with ammonia to cinnamic amide carboxamide, carboxylic acid chloride reaction of the carbonyl group in carboxylic acid derivatives stirring with magnetic stir bar, adding dropwise with an addition funnel, shaking out, extracting, evaporating with rotary evaporator, recrystallizing, filtering, use of an ice cooling bath Easy
Unclear 2022 Reduction of L-(-)-menthone with lithium aluminum hydride to an isomeric mixture of (-)-menthol and (+)-neomenthol ketone, alcohol, complex metal hydride, natural product reaction of the carbonyl group in ketones, reduction, stereoselective addition working with moisture exclusion, stirring with KPG stirrer, adding dropwise with an addition funnel, heating under reflux, filtering, evaporating with rotary evaporator, distilling under reduced pressure, use of a cooling bath, heating with oil bath Difficult
Unclear 5001 Nitration of phenol to 2-nitrophenol and 4-nitrophenol aromatics, phenol, nitroaromatics electrophilic substitution of aromatics, nitration microwave-assisted reaction, stirring with magnetic stir bar, adding dropwise with an addition funnel, heating under reflux, steam distillation, extracting, shaking out, filtering, recrystallizing, draining of gases, use of an ice cooling bath Medium
Yellow light 1003 Nitration of benzaldehyde to 3-nitrobenzaldehyde aromatics, nitroaromatics, aldehyde electrophilic substitution of aromatics, nitration of aromatics stirring with magnetic stir bar, extracting, shaking out, recrystallizing, filtering, use of an ice cooling bath Medium
Unclear 3003 Synthesis of trans-2-chlorocyclohexanol from cyclohexene alkene, halogene hydrin addition to alkenes, stereoselective addition heating under reflux, stirring with magnetic stir bar, adding dropwise with an addition funnel, steam distillation, shaking out, extracting, filtering, evaporating with rotary evaporator, distilling under reduced pressure, heating with oil bath Medium
Unclear 3012 Synthesis of adamantylideneadamantane from adamantanone ketone, alkene McMurry reaction, reductive coupling, alkenesynthesis working with cover gas, adding dropwise with a piston-operated pipette, adding dropwise with an addition funnel, stirring with magnetic stir bar, heating under reflux, shaking out, extracting, Abfiltrieren, evaporating with rotary evaporator, recrystallizing, use of an ice cooling bath, heating with oil bath Difficult
Unclear 5007 Reaction of phthalic anhydride with resorcin to fluorescein carboxylic acid anhydride, phenol, dye reaction of the carbonyl group in carboxylic acid derivatives, electrophilic substitution of aromatics, Friedel-Crafts acylation, ring closure reaction microwave-assisted reaction, stirring with magnetic stir bar, heating under reflux, adding dropwise with an addition funnel, filtering, extracting Easy
Unclear 1004 Nitration of pyridine N-oxide to 4-nitropyridine N-oxide aromatics, nitroaromatics, heteroaromatics electrophilic substitution of aromatics, nitration stirring with magnetic stir bar, heating under reflux, adding dropwise with an addition funnel, filtering, evaporating with rotary evaporator, draining of gases, working with wash bottles, use of an ice cooling bath, heating with oil bath Easy
Unclear 2005 Synthesis of the acetonide of meso-1,2-diphenyl-1,2-ethanediol (2,2-dimethyl-4,5-diphenyl-1,3-dioxolane) ketone, alcohol, acetal, protecting group, acid catalyst reaction of the carbonyl group in ketones, acetalisation heating under reflux, stirring with magnetic stir bar, filtering, evaporating with rotary evaporator, shaking out, extracting, recrystallizing, working with moisture exclusion, heating with oil bath Easy
Unclear 3009 Synthesis of trans-5-norbornene-2,3-dicarboxylic acid from fumaric acid and cyclopentadiene alkene, carboxylic acid, diene, dienophile cycloelimination, cycloaddition, Diels-Alder reaction column distillation, stirring with magnetic stir bar, heating under reflux, adding dropwise with an addition funnel, filtering, recrystallizing, use of a cooling bath, heating with oil bath Medium
Unclear 2011 Acid catalyzed reaction of L-(+)-tartaric acid with ethanol to L-(+)-tartaric acid diethyl ester carboxylic acid, alcohol, carboxylic acid ester, ion exchanger, acid catalyst reaction of the carbonyl group in carboxylic acids, esterification heating under reflux, filtering, evaporating with rotary evaporator, distilling under reduced pressure, stirring with magnetic stir bar, heating with oil bath, use of an ice cooling bath Easy
Unclear 2028 Reaction of cyclohexyl magnesium bromide with carbon dioxide to cyclohexanecarboxylic acid metal-organic compound, bromoalkane, carboxylic acid Grignard reaction, reaction of the carbonyl group in carbon dioxide working with moisture exclusion, adding dropwise with an addition funnel, heating under reflux, stirring with magnetic stir bar, heating with oil bath, heating with water bath, use of an ice cooling bath, working with dry ice, shaking out, extracting, filtering, evaporating with rotary evaporator, distilling under reduced pressure Medium
Unclear 1011 Synthesis of 1,4-di-tert-butylbenzene from tert-butylbenzene and tert-butyl chloride aromatics, alkylaromatics, chloroalkane, acid catalyst electrophilic substitution of aromatics, Friedel-Crafts alkylation working with moisture exclusion, working with wash bottles, draining of gases, stirring with magnetic stir bar, extracting, shaking out, filtering, evaporating with rotary evaporator, use of an ice cooling bath, recrystallizing, heating with oil bath Easy
Unclear 1007 Synthesis of 2,4,6-tribromoaniline from 4-bromoacetanilide aromatics, bromoaromatics elektrophilic substitution of aromatics, bromination stirring with magnetic stir bar, heating under reflux, adding dropwise with an addition funnel, filtering, recrystallizing, use of an ice cooling bath, heating with oil bath Medium
Unclear 1017 Azocoupling of benzenediazonium chloride with 2-naphthol zu 1-Phenylazo-2-naphthol aromatics, diazonium salt, naphthol, dye electrophilic substitution of aromatics, azocoupling stirring with magnetic stir bar, filtering, recrystallizing, use of an ice cooling bath, heating with oil bath, stirring with KPG stirrer, adding dropwise with an addition funnel Medium
Yellow light 1022 Isolation of piperine from black pepper natural product isolation of natural products extracting with Soxhlet extractor, stirring with magnetic stir bar, heating under reflux, filtering, evaporating with rotary evaporator, use of an ice cooling bath, heating with oil bath Easy
Yellow light 1024 Elimination of water from 4-hydroxy-4-methyl-2-pentanone alcohol, alkene, ketone, acid catalyst elimination distilling, stirring with magnetic stir bar, filtering, heating with oil bath Easy
Yellow light 1023 Isolation of hesperidine from orange peel natural product isolation of natural products extracting with Soxhlet extractor, stirring with magnetic stir bar, heating under reflux, filtering, evaporating with rotary evaporator, recrystallizing, heating with oil bath Easy
Unclear 1005 Bromination of 1,2-dimethoxybenzene to 4,5-dibromo-1,2-dimethoxybenzene aromatics, bromoaromatics, aryl ether electrophilic substitution of aromatics, bromination of aromatics adding dropwise with an addition funnel, stirring with magnetic stir bar, recrystallizing, filtering Easy
Unclear 2029 Reaction of triphenylphosphane with bromoacetic acid methyl ester to (carbomethoxymethyl)triphenylphosphonium bromide phosphororganic compound, phosphonium salt, phosphane, halogenecarboxylic acid ester nucleophilic substitution stirring with magnetic stir bar, adding dropwise with an addition funnel, extracting, filtering, evaporating with rotary evaporator Easy
Unclear 2030 Reaction of (carbomethoxymethyl)triphenylphosphonium bromide with benzaldehyde phosphororganic compound, phosphonium salt, aldehyde, alkene reaction of the carbonyl group in aldehydes, alkene synthesis, Wittig reaction adding dropwise with an addition funnel, stirring with magnetic stir bar, heating under reflux, evaporating with rotary evaporator, filtering, distilling under reduced pressure, extracting, shaking out, heating with oil bath Easy
Unclear 3010 Synthesis of 9,10-dihydro-9,10-ethanoanthracene-11,12-trans-dicarboxylic acid diethyl ester alkene, aromatics, carboxylic acid ester, diene, dienophile, acid catalyst cycloaddition, Diels-Alder reaction working with moisture exclusion, heating under reflux, stirring with magnetic stir bar, filtering, evaporating with rotary evaporator, recrystallizing, use of an ice cooling bath, heating with oil bath Medium
Unclear 3015 Synthesis of iodocyclohexane from cyclohexane and iodoform alkane, iodoalkane iodination, radical reaction working with light exclusion, stirring with magnetic stir bar, shaking out, extracting, filtering, evaporating with rotary evaporator, distilling under reduced pressure Easy
Unclear 3016 Oxidation of ricinoleic acid (from castor oil) with KMnO4 to azelaic acid alkene, carboxylic acid, renewable resources oxidation heating under reflux, stirring with magnetic stir bar, stirring with KPG stirrer, adding dropwise with an addition funnel, shaking out, extracting, evaporating with rotary evaporator, filtering, recrystallizing, heating with oil bath Medium
Unclear 3018 Synthesis of 3-phenylbenzoic acid from 3-iodobenzoic acid arylboronic acid, iodoaromatics, aromatics, transition metal catalyst Suzuki reaction working with cover gas, stirring with magnetic stir bar, shaking out, extracting, filtering, evaporating with rotary evaporator Easy
Unclear 3023 Hydrogenation of cinnamic acid ethyl ester to 3-phenylpropionic acid ethyl ester carboxylic acid ester, alkene, complex metal hydride hydrogenation, reduction, addition to alkenes stirring with magnetic stir barextracting, shaking out, filtering, evaporating with rotary evaporator, distilling under reduced pressure, use of an ice cooling bath, heating with oil bath Medium
Unclear 3028 Pinacol pinacolone rearrangement alcohol, ketone pinacol rearrangement, Wagner-Meerwein rearrangement simultaneous distillation / extraction (SDE), column distillation, stirring with magnetic stir bar, heating with oil bath Easy
Unclear 3033 Synthesis of acetylenedicarboxylic acid from meso-dibromosuccinic acid bromoalkane, alkyne, carboxylic acid elimination heating under reflux, stirring with magnetic stir bar, shaking out, extracting, filtering, evaporating with rotary evaporator, heating with oil bath Easy
Unclear 3035 Synthesis of cis-1,2-epoxycyclooctane from cyclooctene alkene, epoxide, peroxide, enzyme, natural product addition to alkenes, oxidation stirring with magnetic stir bar, distilling under reduced pressure, shaking out, extracting, filtering, evaporating with rotary evaporator, heating with oil bath Easy
Unclear 3011 Synthesis of erythro-9,10-dihydroxystearic acid from oleic acid alkene, alcohol, natural product addition to alkenes, oxidation, cis-hydroxylation stirring with magnetic stir bar, filtering, recrystallizing, extracting Easy
Unclear 4002 Synthesis of benzil from benzoin alcohol, ketone, transition metal catalyst oxidation introduction of gas, stirring with magnetic stir bar, shaking out, extracting, filtering, recrystallizing, evaporating with rotary evaporator Easy
Unclear 4004 Synthesis of gamma-decalactone from 1-octene and iodoacetic acid ethyl ester alkene, halogencarboxylic acid ester, lactone addition to alkenes, radical reaction, ring closure reaction working with cover gas, stirring with magnetic stir bar, heating under reflux, evaporating with rotary evaporator, filtering, distilling under reduced pressure, heating with oil bath Easy
Unclear 4005 Synthesis of 9-(5-oxotetrahydrofuran-2-yl)nonanoic acid methyl ester alkene, halogencarboxylic acid ester, lactone addition to alkenes, radical reaction, ring closure reaction working with cover gas, stirring with magnetic stir bar, heating under reflux, evaporating with rotary evaporator, filtering, recrystallizing, heating with oil bath Easy
Unclear 4006 Synthesis of 2-(3-oxobutyl)cyclopentanone-2-carboxylic acid ethyl ester carboxylic acid ester, ketone, acid catalyst addition to alkenes, Michael addition working with cover gas, stirring with magnetic stir bar, adding dropwise with an addition funnel, extracting, shaking out, evaporating with rotary evaporator, distilling under reduced pressure, vacuum pump, heating with oil bath Easy
Unclear 4008 Synthesis of 2-dimethylaminomethyl-cyclohexanone hydrochloride ketone, aldehyde, amine reaction of the carbonyl group in aldehydes, Mannich reaction heating under reflux, stirring with magnetic stir bar, evaporating with rotary evaporator, filtering, recrystallizing, heating with oil bath Easy
Unclear 4009 Synthesis of adipic acid from cyclohexene peroxide, alkene, carboxylic acid oxidation, phase transfer catalysis stirring with magnetic stir bar, heating under reflux, recrystallizing, filtering, evaporating with rotary evaporator, heating with oil bath Easy
Unclear 4012 Synthesis of (-)-N-benzylcinchonidinium chloride chloroalkane, amine, natural product nucleophilic substitution heating under reflux, stirring with magnetic stir bar, filtering, heating with oil bath Easy
Unclear 4013 Synthesis of benzalacetophenone from benzaldehyde and acetophenone aldehyde, ketone, aromatics, acid catalyst reaction of the carbonyl group in aldehydes, aldol condensation stirring with magnetic stir bar, distilling under reduced pressure, heating with oil bath Easy
Unclear 4014 Enantiomeric resolution of (R)- and (S)-2,2'-dihydroxy-1,1'-binaphthyl ((R)- and (S)-1,1-bi-2-naphthol) naphthol enantiomeric resolution heating under reflux, stirring with magnetic stir bar, evaporating with rotary evaporator, filtering, extracting, shaking out, recrystallizing, use of an ice cooling bath, heating with oil bath, column chromatography Medium
Unclear 4016 Synthesis of (±)-2,2'-dihydroxy-1,1'-binaphthyl naphthol, aromatics oxidative coupling heating under reflux, stirring with magnetic stir bar, removal of water by azeotropic distillation, filtering, evaporating with rotary evaporator, heating with oil bath, stirring with KPG stirrer, heating with regulatable heating mantle Medium
Unclear 3034 Synthesis of trans-1,2-cyclohexanediol from cyclohexene alkene, peroxoic acid, alcohol addition to alkenes, stereoselective addition, oxidation stirring with magnetic stir bar, adding dropwise with an addition funnel, evaporating with rotary evaporator, distilling under reduced pressure, use of an ice cooling bath, heating with oil bath, heating with water bath Medium
Unclear 4019 Synthesis of acetamidostearic acid methyl ester from oleic acid methyl ester carboxylic acid ester, renewable resources addition to alkenes, Ritter reaction stirring with magnetic stir bar, adding dropwise with an addition funnel, heating under reflux, shaking out, extracting, recrystallizing, filtering, evaporating with rotary evaporator, use of a cooling bath, heating with oil bath Medium
Unclear 4022 Synthesis of (S)-(+)-3-hydroxybutyric acid ethyl ester ketone, alcohol, enzyme, natural product stereoselective reduction stirring with KPG stirrer, stirring with magnetic stir bar, adding dropwise with an addition funnel, extracting, evaporating with rotary evaporator, filtering, distilling under reduced pressure, column distillation, vacuum pump, heating with oil bath Medium
Unclear 4023 Synthesis of cyclopentanone-2-carboxylic acid ethyl ester from adipic acid diethyl ester carboxylic acid ester reaction of the carbonyl group in carboxylic acid derivatives, Dieckmann condensation, ring closure reaction working with moisture exclusion, heating under reflux, stirring with KPG stirrer, stirring with magnetic stir bar, adding dropwise with an addition funnel, extracting, shaking out, filtering, evaporating with rotary evaporator, distilling under reduced pressure, heating with oil bath Medium
Unclear 4029 Synthesis of dodecyl phenyl ether from bromododecane and phenol bromoalkane, phenol, ether Williamson's ether synthesis, nucleophilic substitution, phase transfer catalysis heating under reflux, stirring with magnetic stir bar, extracting, shaking out, filtering, evaporating with rotary evaporator, distilling under reduced pressure, column distillation, heating with oil bath Medium
Unclear 4026 Synthesis of 2-chloro-2-methylpropane (tert-butyl chloride) from tert-butanol chloroalkane, alcohol nucleophilic substitution stirring with magnetic stir bar, column distillation, filtering, use of an ice cooling bath, heating with oil bath Easy
Unclear 4028 Synthesis of 1-bromododecane from 1-dodecanol alcohol, bromoalkane, acid catalyst nucleophilic substitution heating under reflux, stirring with magnetic stir bar, shaking out, extracting, rectifying, evaporating with rotary evaporator, filtering, distilling under reduced pressure, column distillation, heating with oil bath Medium
Unclear 5009 Synthesis of copper phthalocyanine carboxylic acid anhydride, carbonic acid derivate, heterocycle, dye reaction of the carbonyl group in carboxylic acid derivatives, ring closure reaction microwave-assisted reaction, stirring with magnetic stir bar, heating under reflux, extracting, filtering, draining of gases Easy
Unclear 5012 Synthesis of acetylsalicylic acid (aspirin) from salicylic acid and acetic anhydride carboxylic acid anhydride, carboxylic acid ester, carboxylic acid, phenol, aromatics, acid catalyst reaction of the carbonyl group in carboxylic acid derivatives, esterification microwave-assisted reaction, stirring with magnetic stir bar, heating under reflux, filtering, extracting, shaking out, recrystallizing Easy
Unclear 5013 Synthesis of 2,6-dimethyl-4-phenyl-1,4-dihydropyridine-3,5-dicarboxylic acid diethyl ester carboxylic acid ester, aldehyde, ketone, heterocycle, aromatics reaction of the carbonyl group in aldehydes, reaction of the carbonyl group in ketones, Hantzsch synthesis, ring closure reaction microwave-assisted reaction, heating under reflux, filtering, evaporating with rotary evaporator, stirring with magnetic stir bar, draining of gases Easy
Unclear 7001 Synthesis of 5-hydroxy-1,4-naphthoquinone (Juglone) naphthoquinone, natural product [4+2] cycloaddition, photooxygenation photochemical reaction, sensitization, photooxygenation, heterogeneous reaction Medium
Unclear 3001 Hydroboration/oxidation of 1-octene to 1-octanol alcohol, alkene addition to alkenes, hydroboration, oxidation working with moisture exclusion, stirring with magnetic stir bar, adding dropwise with an addition funnel, shaking out, extracting, filtering, evaporating with rotary evaporator, distilling under reduced pressure, use of a cooling bath, heating with oil bath Medium
Unclear 3002 Addition of bromine to fumaric acid to meso-dibromosuccinic acid alkene, carboxylic acid, bromoalkane addition to alkenes, stereoselective addition, bromination heating under reflux, stirring with magnetic stir bar, adding dropwise with an addition funnel, filtering, evaporating with rotary evaporator, recrystallizing, use of an ice cooling bath, heating with oil bath Medium
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