The Reaction of 2-Ethoxy-3-Phenylbenzo[D]-1,3, 2-Oxazaphosphorin-6-One with α-Ketocarboxylic Acid Esters: Synthesis of Benzo[d]-1,3,2-Oxazaphosphepine Derivatives

V F Mironov,Liliya M Burnaeva,Gulnara A Ivkova

PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS（2013）

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摘要

The reactions of 2-ethoxy-3-phenylbenzo[d]-1,3,2-oxazaphosphorin-6-one with R-carbonylcarboxylic acids ethyl esters (R = CF3, Ph, and Me) lead to the formation of seven-membered heterocycles, 2-ethoxy-9-ethoxycarbonyl-2,8-dioxo-3-phenyl-9-R-benzo[d]-1,3,2-oxazaphosphepines.

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关键词

Oxazaphosphorinone,oxazaphosphepine,regioselectivity,three-coordinated phosphorus,tetra-coordinated phosphorus,phosphorane

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