PENTACOORDINATE SPIROCYCLIC DERIVATIVES OF THE 2H-1,2,3-DIAZAPHOSPHOLE SYSTEM

Graziano Baccolini Istituto di Chimica Organica, Universitå, 40136, Bologna, Italy

Piero Spagnolo Istituto di Chimica Organica, Universitå, 40136, Bologna, Italy

Paolo E. Todesco Istituto di Chimica Organica, Universitå, 40136, Bologna, Italy

Abstract

Stable spirocyclic phosphoranes 2 have been prepared stereospecifically in high yields (90–95%) by reaction of o-azidophenol with cis and trans-diazaphosphole derivatives 1. Slow isomerization of pure diastereoisomer 2 was observed in acidic conditions.

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PENTACOORDINATE SPIROCYCLIC DERIVATIVES OF THE 2H-1,2,3-DIAZAPHOSPHOLE SYSTEM

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PENTACOORDINATE SPIROCYCLIC DERIVATIVES OF THE 2H-1,2,3-DIAZAPHOSPHOLE SYSTEM

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