P??bis (trifluoromethyl) ylides: Synthesis and reactions

U Dieckbreder, GV Röschenthaler…

Index: Dieckbreder, Uwe; Roeschenthaler, Gerd-Volker; Kolomeitsev, Alexander A. Heteroatom Chemistry, 2002 , vol. 13, # 7 p. 650 - 653

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Citation Number: 12

Abstract

Abstract Bis (trifluoromethyl) phosphines RP (CF 3) 2 (R= Me, NEt 2) were methylated by MeOSO 2 CF 3, yielding the respective phosphonium salts [RP (CF 3) 2 Me]+ and CF 3 SO 3−. Deprotonation using MeN [DOUBLE BOND] P (NEt 2) 3 led to the phosphorus ylides RP (CF 3) 2 [DOUBLE BOND] CH 2, stable in solution at ambient temperature, which could be converted into 1, 2λ 5 σ 5-oxaphosphetanes by adding hexafluoroacetone.© 2002 Wiley ...