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Original Articles

Unexpected Reactivity of Ethyl 2-(Diethylphosphono)Propionate Toward 2,2-Disubstituted-1,3-cyclopentanediones

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Pages 1739-1748 | Received 24 Aug 2004, Accepted 26 Aug 2004, Published online: 01 Feb 2007
 

Abstract

A Horner-Wadsworth-Emmons reagent-ethyl 2-(diethylphosphono)propionate in the reaction with 2,2-disubstituted-1,3-cyclopentanediones, results in 4-oxohexanoic acid ethyl ester derivative up to 90% isolated yield. 31P-13C- and 1H-NMR study of the intermediates of the reaction involving the ethyl 2-(diethylphosphono)propionate was accomplished.

We would like to thank the Estonian Science Foundation for supporting the present work through Grant Numbers 5628, 5133, 4976 and also A.-M. Müürisepp for the mass spectra and T. Kailas for the infrared spectra of the coumpounds reported herein.

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