Reactions Flashcards
Aldol Reaction
two carbonyls to a,b-unsaturated ketone
Pinacol Coupling
2 carbonyls reacts with Mg to couple, forming diol, rearranges to ketone
Enolate Alkylation
enolate reacts with electrophile by sn2
alcohol dehydration
alcohol to alkene, generally most stable with shifts
barton deoxygenation
alcohol to alkane via radicals
Radical Dehalogenation
alkyl halide to alkane via radicals
Clemmenson Reduction
carbonyl to methylene with Zn(Hg) and H+
Wollf-Kishner
Carbonyl to methylene under base with H2NNH2
Michael Reaction
enolate reacts with a,b-unsaturated carbonyl to form 1,5 carbonyl
Ozonolysis
split alkene into symmetrical carbonyls
Stetter Reaction
1,4 addition of aldehyde to a,b-unsaturated carbonyl wiht NEt3
O-allylation
oxygen anion acts as nucleophile in sn2
Friedel Crafts Alkylation
benzene reacts with alkylhalide by lewis acid activation
Friedel Crafts Acylation
benzene reacts with acid chloride by lewis acid activation
Ether Formation
alcohol reacts with alkyl halide in presence of base
acetal formation
carbonyl reacts with alcohol (once to hemi, twice to acetal)
alkene metathesis
exchange substituents of two alkenes by catalysis
Wittig Olefination
Carbonyl reacts with phosphonium ylide to form alkene
Epoxidation
alkene reacts with m-CPBA stereoselectively
Alkene addition
add electrophilie/nucleophile to alkene
robinson annulation
michael addition followed by intramolecular aldol to form a,b unsaturated carbonyl cyclohexene
Mozingo Reduction
carbonyl to methylene via thioketal
Simmons Smith
cyclopropanation of alkene with Zn(Cu) and CH2I2
Diekmann Reaction
Intramolecular claissen
Alkyne Alkylation
Deprotonate alkyne to act as nucleophile in Sn2
Gem diol
react carbonyl with water and vice versa
Amine synthesis
reduction of amides, reduction of nitriles, hydrogenation of nitros, reduction of azides, reaction with alkyl halides, reduction of imines/enamines
Carboxylic Acid Synth
oxidation of alcohols/aldehydes, gridnard addition to CO2
Fischer Esterification
carboxylic acid with alcohol
acid chloride synth
carboxylic acid with SOCl2
amide synth
acid chloride and amine (Sn2)
anhydride synth
acid chloride and carboxylate anion
Villsmer Haack Formylation
Pyridine reacts with POCl3 and water to add aldehyde
Organocopper reactions
reacts with alkyl halides, acyl halides, epoxides and a,b-unsaturated carbonyls to add alkyl group
Weinreb amides
react with grignards to form ketones
Wadsworth Emmons Olefination
Forms trans alkenes from phosphonium substrate
Nitrile/azide synth
react alkyl halide with NaCN/N3
Imine/enamine Synth
react carbonyl with amine
Dihydroxylation
react alkene with OsO4 to add diol
Hydrolysis of nitriles
goes to carboxylic acids
Decarboxylation
eliminates CO2 from dicarbonyl
Mannich Reaction
carbonyl reacts with amine and formaldehyde to form b-amino carbonyl
Wohl Zeigler Reaction
adds bromine adjacent alkene via NBS radical
Fischer Indole Synthesis
reaction of C6H6NHNH2 and aldehyde ketone to form indole
Claisen Johnson Rearrangement
allylic alcohol reacts with trialkyl ether to produce a 1,6 unsaturated carbonyl ester.
Eltrophilic aromatic substitution
benzene reacts with activated electrophiles such as halides, nitric acid, sulfonic acid, alkyls, acyls
allylic oxidation
subbed alkene reacts with SeO2 to form allylic alcohol