The Novel Application of Chiral α-Ethylphenyl Amine Tartaric Acid Salts-Cyanosilylation of Prochiral Aldehydes

Abstract

The � -ethylphenylamine tartaric acid salts 1a-1d were synthesized from R-(+)/S-(-)-� -ethylphenylamine by reacting with (2S,3S)-(+)/(2R,3R)-(-) dihydrobutanedioic acid. They were used as the catalysts in cyanosilylation of prochiral aldehydes to give the corresponding cyanohydrin trimethylsilyl ethers in moderate conversion at room