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A General Hypothesis for the Mechanism of the Wittig Reaction

1989; Taylor & Francis; Volume: 41; Issue: 3-4 Linguagem: Inglês

10.1080/10426508908039729

1563-5325

William E. McEwen, William J. Ward,

Synthesis and Reactivity of Sulfur-Containing Compounds

Abstract Arguments are presented that an ionic mechanism is operative in the Wittig reaction when a metal ion is a part of the transition state leading to oxaphosphetane formation but that formation of a spin paired diradical precedes oxaphosphetane formation in other cases.