Issue 34, 2012

Enantio- and diastereocontrolled conversion of chiral epoxides to trans-cyclopropane carboxylates: application to the synthesis of cascarillic acid, grenadamide and l-(−)-CCG-II

Abstract

An efficient high yielding improved method for the enantio- and diastereoselective cyclopropanation of chiral epoxides using triethylphosphonoacetate and base (Wadsworth–Emmons cyclopropanation) is reported. The utility of this protocol is illustrated by concise and practical synthesis of cascarillic acid, grenadamide and L-(−)-CCG-II, a cyclopropane containing natural products.

Graphical abstract: Enantio- and diastereocontrolled conversion of chiral epoxides to trans-cyclopropane carboxylates: application to the synthesis of cascarillic acid, grenadamide and l-(−)-CCG-II

Associated articles

Supplementary files

Article information

Article type
Paper
Submitted
26 Mar 2012
Accepted
03 Jul 2012
First published
04 Jul 2012

Org. Biomol. Chem., 2012,10, 6987-6994

Enantio- and diastereocontrolled conversion of chiral epoxides to trans-cyclopropane carboxylates: application to the synthesis of cascarillic acid, grenadamide and L-(−)-CCG-II

P. Kumar, A. Dubey and A. Harbindu, Org. Biomol. Chem., 2012, 10, 6987 DOI: 10.1039/C2OB25622C

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