Method of preparing optically active cyanohydrin derivatives

Details Method of preparing optically active cyanohydrin derivatives Method of preparing optically active cyanohydrin derivatives

C - Chemistry, Metallurgy

07

C

C07C 255/38 (2006.01) C07C 253/30 (2006.01) C07C 253/32 (2006.01) C07C 255/14 (2006.01) C07C 323/32 (2006.01) C07D 207/34 (2006.01) C07D 213/57 (2006.01) C07D 215/14 (2006.01) C07D 307/54 (2006.01) C07D 317/60 (2006.01) C07D 333/38 (2006.01)

Patent

CA 2110728

Abstract The invention relates to a method of preparing an optically active cyanohydrin carboxylic acid ester from an optically active cyanohydrin of opposite configuration, wherein said starting cyanohydrin is converted with a carboxylic acid in the presence of a dialkyl azodicarboxylate and a triarylphosphine. The invention also relates to a method of preparing an optically active cyanohydrin of opposite configuration by a subsequent solvolysis of the ester obtained under conservation of the configuration.

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