Chemistry Letters
Online ISSN : 1348-0715
Print ISSN : 0366-7022
ISSN-L : 0366-7022
HIGHLY EFFECTIVE CATALYTIC ASYMMETRIC SYNTHESIS OF R-(−)-PANTOLACTONE
Kazuo AchiwaTetsuo KogureIwao Ojima
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1978 Volume 7 Issue 3 Pages 297-298

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Abstract

The sterically smaller N-substituents of methylpyrrolidinebisphosphines as chiral ligands in benzene except BPPM and BZPPM gave the better optical yields of R-(−)-pantolactone. Thus, BPPM-, FPPM-, APPM-, BZPPM- and PPPM-[Rh(1,5-cyclooctadiene)Cl]2 complexes gave 80.5, 78.9, 73.4, 78.5 and 67.5% optical yields respectively.

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