Reactions - Buchler GmbH

Cycloaddition, dimethyl pent-2-enedioate, tert-butyl hydroxy(3-phenyl-1-(phenylsulfonyl)propyl)carbamate, 2-(tert-butyl) 4-methyl (3R,4R,5S)-5-(2-methoxy-2-oxoethyl)-3-phenethylisoxazolidine-2,4-dicarboxylate, (8α,9R)-9-(2,2-dimethyl-1-oxopropoxy)-6′-methoxy-1-[(2-nitrophenyl)methyl]-cinchonanium chloride, Cinchonidine Derivative

[3+2]-Cycloaddition, Cycloaddition

Cyclization, substituted phenyl(2,4,6-trihydroxyphenyl)methanone, 3-formyl-2-methylbut-3-en-2-yl 2-oxoheptanoate, hyperibone K, (3β,8α,9R)-(3′′β,8′′α,9′′R)-1,1′′-[1,3-phenylenebis(methylene)]bis[3-(2-methyl-1-propen-1-yl)-9-(phenylmethoxy)-10,11-dinorcinchonanium Bromide, Cinchonidine Derivative

Cyclization, Cyclization, Dearomatization, Further Cyclizations

Mannich reaction, isatin-derived N-unprotected ketimines, ketones, substituted 3-amino-3-(2-oxoethyl)indolin-2-one, 2-hydroxypropane-1,2,3-tricarboxylic acid, (8α,9S)-Cinchonan-9-amine, Cinchonidine Derivative

Mannich, Mannich

Protonation, enol esters, (S)-2-propylcyclohexan-1-one, (8α,9R)-1-(9-anthracenylmethyl)-9-hydroxy-Cinchonanium chloride, Cinchonidine Derivative

Cyanation, aldehydes, methyl carbonocyanidate, cyanomethyl methyl carbonates, (8α,9R)-(8′′α,9′′R)-1,1′′-[9,10-anthracenediylbis(methylene)]bis[9-hydroxy-Cinchonanium chloride (1:2), Cinchonidine Derivative

Aza‐Michael Reaction, ethyl (E)-4-(N-benzyl-1H-indole-2-carboxamido)but-2-enoate, pyrazino‐indole compounds, (8α,9R)-9-hydroxy-1-[[4-(trifluoromethyl)phenyl]methyl]-cinchonanium bromide, Cinchonidine Derivative

Aza-Mannich, Cyclization, Further Cyclizations, Intramolecular cyclization, Mannich

Mannich reaction, aminopyrazolones, barbituric acids, aminopyrazolone–barbiturate adducts, 1-(2-(3,3-bis(4-fluorophenyl)-2-oxoindolin-1-yl)ethyl)-3-((S)-quinolin-4-yl((1S,2S,4S,5R)-5-vinylquinuclidin-2-yl)methyl)thiourea, Cinchonidine Derivative

Mannich, Mannich

Racemic resolution, racemic QUINAPs, (R)-QUINAPs, (8α,9R)-9-hydroxy-1-(phenylmethyl)-Cinchonanium chloride, Cinchonidine Derivative

Atropisomer synthesis, Racemic resolution, Resolution

Addition, 4‐nitro‐5‐styrylisoxazoles, nitromethane, 5-(3-nitro-2-phenylpropyl)isoxazoles, N-[3,5-bis(trifluoromethyl)benzyl]-cinchonidinium Bromide, Cinchonidine Derivative

Cyclization, substituted 2-(2-(benzylideneamino)phenyl)malonate, functionalized indolines, (8α,9R)-9-hydroxy-1-(phenylmethyl)-Cinchonanium chloride, Cinchonidine Derivative

Cyclization, Cyclization, Further Cyclizations

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