17507-47-0Relevant articles and documents
Cumulated Ylides, VI: A New Synthesis of (Triphenylphosphoranylidene)keten, its Thio Analogue, and Stable Propadienylidenetriphenylphosphoranes
Bestmann, Hans Juergen,Sandmeier, Dieter
, p. 274 - 277 (2007/10/02)
Reaction of sodium bis(trimethylsilyl)amide (2) with (methoxycarbonylmethylene)triphenylphosphorane (1a) or its dithio analogue 1b leads to β-elimination and formation of (triphenylphosphoranylidene)ketene (3a) and -thioketene (3b), respectively.The analo