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Mannich, N-protected phenylmethanimine, acetylacetone, N-protected (S)-3-(amino(phenyl)methyl)pentane-2,4-dione, Cinchonidine Base

Mannich, Mannich

Barbier Reaction, methyl 2,2-dimethyl-3-oxopropanoate, allyl bromide, methyl (R)-3-hydroxy-2,2-dimethylhex-5-enoate, indium, Cinchonidine Base

Barbier Reaction, Further reactions

Atropisomer Synthesis, indole-derived maleimides, methyl 1-oxo-2,3-dihydro-1H-indene-2-carboxylate, N–N atropisomers, (8α,9R)-10,11-dihydro-6′-(1-methylethoxy)-cinchonan-9-ol, Dihydrocupreine Derivative

Atropisomer synthesis, Michael, Michael Addition

Michael Addition, acetylacetone, (E)-(2-nitrovinyl)benzene, (S)-3-(2-nitro-1-phenylethyl)pentane-2,4-dione, 3-[[(3R,8α,9S)-6′-(2-aminoethoxy)-10,11-dihydrocinchonan-9-yl]amino]-4-[[3,5-bis(trifluoromethyl)phenyl]amino]-3-cyclobutene-1,2-dione, Dihydrocupreine Derivative

Michael, Michael Addition

Cyclization, 5-benzyl-5-(2-hydroxybenzyl)-2,2-dimethyl-1,3-dioxane-4,6-dione, (S)-3-benzylchroman-2-one, (8α,9R)-9-(diphenylmethoxy)-cinchonan-6′-ol, Dihydrocupreine Derivative

Cyclization, Cyclization, Further Cyclizations

Epimerization, dimethyl (1R,2S,3R,4S,5R,6S)-4,5-dihydroxy-3,6-dimethylcyclohexane-1,2-dicarboxylate, dimethyl (1R,2S,3R,4R,5R,6S)-4,5-dihydroxy-3,6-dimethylcyclohexane-1,2-dicarboxylate, N-[(9S)-10,11-dihydrocinchonan-9-yl]-carbamic acid 1,1-dimethylethyl ester, Dihydrocinchonidine Derivative

Desymmetrization, Isomerization

Ring Opening, 4-isopropyl-2-phenyloxazol-5(4H)-one, allyl alcohol, allyl benzoylvalinate, N,N′-bis[(8α,9S)-10,11-dihydrocinchonan-9-yl]-thiourea, Dihydrocinchonidine Derivative

Further reactions, Ring opening

Alpha-Alkylation, tert-butyl 2-phenyl-5,6-dihydro-4H-1,3-oxazine-4-carboxylate, 1-(bromomethyl)-4-fluorobenzene, tert-butyl (R)-4-(4-fluorobenzyl)-2-phenyl-5,6-dihydro-4H-1,3-oxazine-4-carboxylate, (8α,9R)-10,11-dihydro-9-(2-propen-1-yloxy)-1-[(2,3,4-trifluorophenyl)methyl]-Cinchonanium bromide, Dihydrocinchonidine Derivative

Alkylation, alpha-Alkylation

Alpha-Alkylation, tert-butyl 2-((diphenylmethylene)amino)acetate, substituted 3-(bromomethyl)-1H-indole, substituted tert-butyl (S)-2-((diphenylmethylene)amino)-3-(1H-indol-3-yl)propanoate, (8α,9R)-(8′′α,9′′R)-1,1′′-[2,7-naphthalenediylbis(methylene)]bis[10,11-dihydro-9-(2-propen-1-yloxy)-cinchonanium bromide, Dihydrocinchonidine Derivative

Alkylation, alpha-Alkylation

Alpha-Alkylation, tert-butyl 2-((diphenylmethylene)amino)acetate, 3-bromo-2-methylprop-1-ene, tert-butyl (S)-2-((diphenylmethylene)amino)-4-methylpent-4-enoate, (8α,9R)-(8′′α,9′′R)-1,1′′-[2,7-naphthalenediylbis(methylene)]bis[10,11-dihydro-9-(2-propen-1-yloxy)-cinchonanium bromide, Dihydrocinchonidine Derivative

Alkylation, alpha-Alkylation

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