STEREOSELECTIVE SYNTHESIS OF (+/-)-CONHYDRINE, (+/-)-EPHEDRINE, AND (+/-)-METHYLEPHEDRINE
(+/-)-Conhydrine, (+/-)-ephedrine, and (+/-)-N-methylephedrine have been synthesized with a complete stereochemical control by utilizing carbanions in which the negative charge is located at the position α to the nitrogen atom of N-acylamines.