Synthesis

New Synthesis of gem-Bis (phosphono) ethylenes and their Applications

S Inoue, T Okauchi, T Minami

Index: Inoue, Susumu; Okauchi, Tatsuo; Minami, Toru Synthesis, 2003 , # 13 p. 1971 - 1976

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Citation Number: 12

Abstract

Abstract Palladium-catalyzed cross-coupling reaction of α-phosphonovinyl nonafluorobutanesulfonates (nonaflates) 1 with dialkyl phosphites gave versatile intermediate reagents, gem-bis (phosphono) ethylenes 2a-d in 35-93% yields. The reaction of bis (diethylphosphono) ethylene (2a) with tribromomethyllithium to give the Michael adduct 3 was followed by treatment with potassium hydride to form 1, 1-dibromo-2, 2-bis ( ...

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