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N-Sulfinylimines derived from aromatic and aliphatic aldehydes react with nitroethane and NaOH, yielding mainly two diastereoisomeric β-nitroamines as the result of a highly diastereoselective… (More)
The first organocatalytic enantioselective 1,6-addition of β-ketoesters and benzophenone imine to electron-poor δ-unsubstituted dienes using cinchona alkaloids under phase-transfer conditions is… (More)
Optically pure cyano tert-alkyl sulfones have been obtained by organocatalytic enantioselective Michael addition of alpha-substituted cyanosulfones to vinyl ketones using cinchona alkaloids as… (More)
[reaction: see text] N-Sulfinylimines derived from aromatic or aliphatic aldehydes and ketones react with nitromethane and NaOH in a highly diastereoselective manner under mild conditions. In the… (More)
The cinchona alkaloid quinine promotes the enantioselective nitroso-aldol reaction between alpha-aryl-alpha-cyanoacetates and nitrosobenzene to give the hydroxyamination products with total… (More)