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Epoxidation, 2-methylene-1,3-diketones, tert-butyl hydroperoxide, terminal epoxides, N-[3,5-Bis(trifluoromethyl)phenyl]-N′-[(8α,9S)-6′-methoxycinchonan-9-yl]thiourea, Quinine Derivative

Epoxidation

Spirocyclization, nonactivated arenes, N-bromosuccinimide, 16-bromo-11-chloro-16,16a-dihydro-7aH-benzo[a]indeno[1,2-l]xanthene, N-[(8α,9S)-6′-Methoxycinchonan-9-yl]- 4-(trifluoromethyl)benzamide, Quinine Derivative

Cycloaddition, Dearomatization, Diels-Alder reaction, Further reactions, Spirocyclization

Sulfa-Michael Addition, trans‐chalcones, thiols, substituted (R)-3-(alkylthio)-1,3-diphenylpropan-1-one, 3-[[3,5-bis(trifluoromethyl)phenyl]amino]-4-[[(8α,9S)-6′-methoxycinchonan-9-yl]amino]-3-Cyclobutene-1,2-dione, Quinine Derivative

Michael Addition, Sulfa-Michael, Sulfa-Michael Addition

Atropisomer Synthesis, 1-(3,3-dimethylbut-1-yn-1-yl)naphthalen-2-ol, 4-methylbenzenethiol, (E)-1-(3,3-dimethyl-1-(p-tolylthio)but-1-en-1-yl)naphthalen-2-ol, N-[3,5-Bis(trifluoromethyl)phenyl]-N′-[(8α,9S)-6′-methoxycinchonan-9-yl]urea, Quinine Derivative

Atropisomer synthesis

[4+2] Cycloaddition, 1-azaaurones, deconjugated butenolides, substituted 4,5-dihydropyrano[3,2-b]indol-2(3H)-one, 3-[[3,5-bis(trifluoromethyl)phenyl]amino]-4-[[(8α,9S)-6′-methoxycinchonan-9-yl]amino]-3-Cyclobutene-1,2-dione, Quinine Derivative

[4+2]-Cycloaddition, Cycloaddition

Cyclization, arylalcohols, deconjugated butenolides, 2-chromanones, 3-[[3,5-bis(trifluoromethyl)phenyl]amino]-4-[[(8α,9S)-6′-methoxycinchonan-9-yl]amino]-3-Cyclobutene-1,2-dione, Quinine Derivative

Addition, Cyclization, Cyclization, Further Cyclizations

Michael Addition, cyclic ketones, (ethene-1,1-diyldisulfonyl)dibenzene, α‐branched ketone dienolates, 3-[(1,1-dimethylethyl)amino]-4-[[(8α,9S)-6′-methoxycinchonan-9-yl]amino]-3-Cyclobutene-1,2-dione, Quinine Derivative

Michael, Michael Addition

Cyclization, vinylogous carbonyl enolates, substituted 2-nitroprop-2-en-1-ol, carbocycles, 3-[[3,5-bis(trifluoromethyl)phenyl]amino]-4-[[(8α,9S)-6′-methoxycinchonan-9-yl]amino]-3-Cyclobutene-1,2-dione, Quinine Derivative

Alkylation, alpha-Alkylation, Cyclization, Cyclization, Further Cyclizations

Cyclization, β,γ-unsaturated ketones, nitroalkenes, carbocycles, 3-[[[3,5-Bis(trifluoromethyl)phenyl]methyl]amino]-4- [[(8α,9S)-6′-methoxycinchonan-9-yl]amino]- 3-Cyclobutene-1,2-dione, Quinine Derivative

Addition, Cyclization, Cyclization, Further Cyclizations

Mukaiyama-Michael Reaction, substituted (E)-(buta-1,3-dien-1-yloxy)trimethylsilane, substituted diisopropyl acryloylphosphonate, substituted benzyl (E)-4-formylhex-4-enoate, 3-[[3,5-bis(trifluoromethyl)phenyl]amino]-4-[[(8α,9S)-6′-methoxycinchonan-9-yl]amino]-3-Cyclobutene-1,2-dione, Quinine Derivative

Further reactions, Michael, Michael Addition, Mukaiyama-Michael

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