作者:Birgit Weberndörfer、Gerhard Henig、Helmut Werner
DOI:10.1021/om0007062
日期:2000.11.1
Using [(eta (6)-mes)Os(kappa (1)-O2CCF3)(kappa (2)-O2CCF3)] (1) and diaryldiazomethanes as the starting materials, the half-sandwich-type carbencosmium(II) complexes [(eta (6)-mes)Os(kappa (1)-O2CCF3)(2)(=CR2)] (2a-c; R = p-C6H4X with X = H, Me, Cl) were prepared. The dichloro derivatives [(eta (6)-mes)OsCl2(=CR2)] (3a, b), obtained from 2a,b and Me3SiCl, react with PPh3 in the presence of AgPF6 to form the cationic compounds [(eta (6)-mes)OsCl(=CR2)(PPh3)]PF6 (5a,b); moreover, the pi -allyl complex [(eta (6)-mes)OsBr(eta (3)-CH2CHCPh2)] (4) was prepared from 2a and CH2=CHMgBr.