Chemistry Letters p. 363 - 366 (1985)
Update date:2022-08-03
Topics:
Yamashita, Hiroyuki
Mukaiyama, Teruaki
(S)-(-)-Diisopropyl phenylthiosuccinate (81percent optical purity) is prepared in 95percent yield by the asymmetric Michael addition of thiophenol to diisopropyl maleate in the presence of a catalytic amount of cinchonine.The succinate thus prepared is transformed into (R)-(+)-3,4-epoxy-1-butanol without racemization.
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