Olefination Reactions Using Tetraarylphosphonium (TAP)-Supported Phosphorus Ylides

Abstract

Tetraarylphosphonium (TAP)-supported phosphorus ylides were prepared and used in copper-catalyzed olefination reactions with diazo compounds to produce conjugated esters, amides, and phosphonates. The TAP-phosphine oxide can easily be separated from the alkene product, recycled, and reused.

alkenes - diazo compounds - green chemistry - Wittig reaction - ylides

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