Preparation of optically pure enatiomers of Corey lactone by resolution of the racemate

B Žák, I Veselý, K Neumitka…

Index: Zak, Bohumil; Vesely, Ivan; Neumitka, Karel; Palecek, Jaroslav Collection of Czechoslovak Chemical Communications, 1991 , vol. 56, # 8 p. 1690 - 1700

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Citation Number: 5

Abstract

Abstract Racemic hydrogen butanedioates (IIa, IIb) and hydrogen pentanedioates (IIIa, IIIb), prepared by reaction of racemic Corey alcohols Ia, Ib with the corresponding acid anhydride, were resolved by optically active bases [(1R, 2S)-(-)-ephedrine,(S)-(-)-1-phenylethylemine, quinine] to give the optically pure diastereoisomeric salts from which the individual enantiomers of hydrogen butanedioate IIa and IIb and hydrogen pentanedioate IIIa and ...