Formation of a PIII− C (sp2) bond by addition of diphenyl (trimethylsilyl) phosphine to activated acetylenes

…, IV Efimova, IG Trostyanskaya, MA Kazankova…

Index: Kochetkov; Efimova; Trostyanskaya; Kazankova; Beletskaya Russian Chemical Bulletin, 1998 , vol. 47, # 9 p. 1744 - 1748

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Abstract

Abstract Diphenyl (trimethylsilyl) phosphine reacts with alkoxy (alkyl) acetylenes to give mixtures of addition products,(2-alkoxy-2-trimethylsilylalkenyl) diphenylphosphines and (2- alkoxyalkenyl) diphenylphosphines. The reaction is sensitive to the solvent; in MeCN, it gives only nonsilylated products.(1-Alkoxyethenyl) diphenylphosphines were obtained as the main products upon the reaction of Ph 2 PSiMe 3 with terminal alkoxyalkynes, ...