Complexes acetyleniques de titane (II). Reactivite vis-a-vis de l'hydrogene moleculaire: Une nouvelle approche du titanocene

B Demerseman, P Le Coupanec, PH Dixneuf

Index: Demerseman, Bernard; Coupanec, Pascale Le; Dixneuf, Pierre H. Journal of Organometallic Chemistry, 1985 , vol. 287, p. C35 - C38

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Citation Number: 18

Abstract

Résumé Electron-rich alkynetitanium (II) complexes Cp 2 Ti (PhC CPh)(PMe 3),(MeCp) 2 Ti (PhC CPh)(PMe 3) and Cp (C 5 Me 5) Ti (PhC CPh) react with molecular hydrogen and are catalyst precursors for the hydrogenation of alkynes. Selective hydrogenation leading to cis-olefins takes place in the presence of an excess of PMe 3 under mild conditions (1 atm H 2).