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An efficient synthesis of enantiomerically pure (R)-pipecolic acid, (S)-proline, and their N-alkylated derivatives. | LitMetric

An efficient synthesis of enantiomerically pure (R)-pipecolic acid, (S)-proline, and their N-alkylated derivatives.

J Org Chem

Laboratoire de Synthèse Organique et Méthodologie, CNRS, UMR 8182, Institut de Chimie Moléculaire et des Matériaux d'Orsay, Bâtiment 420, Univ Paris-Sud, 91405 Orsay, France.

Published: March 2007

Enantiomerically pure (R)-(+)-pipecolic acid was synthesized in four steps and 42% overall yield starting from dihydropyran and (R)-alpha-methylbenzylamine. A general short strategy is also described for preparing (S)-proline (47.5% overall yield) and derivatives.

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Source
http://dx.doi.org/10.1021/jo062382iDOI Listing

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