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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 22, 1992 - Issue 4
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Original Articles

A One-Pot Generation of α-Chloro-α-Lithio Alkanephosphonates. A New Preparative Route to 1,2-Epoxyalkanephosphonates

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Pages 649-655 | Received 17 Sep 1991, Published online: 24 Sep 2006
 

Abstract

Reaction of lithio anion derived from diethyl alkanephosphonate in the presence of 2 eq. of n-BuLi with benzenesulfonyl chloride gives directly the corresponding diethyl-1-chloro-1-lithioalkanephosphonate, which reacts in situ with carbonyl compounds followed by intramolecular substitution reaction to give 1,2-epoxyalkanephosphonates.

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