allyl, benzyl, 4-pentenyl] with (PhCN)2PdCl2, (PhCN)2PtCl2, [(CO)2RhCl]2, (Me2S)AuCl, [(CH3CN)4Cu]BF4, and AgBF4 provide the corresponding diaminocarbene complexes via carbene ligand transfer. The resulting Pd(II), Pt(II), Rh(I), and Au(I) carbene complexes are stable and were isolated. The Cu(I) and Ag(I) complexes readily undergo acid-induced MC cleavage to yield the imidazolidin-2-ylidinium salts. The
在温和条件下,(CO)5 M C [N(R)CH 2 ] 2 [M = W,Mo,Cr; R = Et,烯丙基,苄基,4-
戊烯基]与(PhCN)2 PdCl 2,(PhCN)2 PtCl 2,[((CO)2 RhCl] 2,(Me 2 S)AuCl,[(CH 3 CN)4 Cu] BF 4和AgBF 4通过卡宾
配体转移提供相应的二
氨基卡宾配合物。所得的Pd(II),Pt(II),Rh(I)和Au(I)卡宾配合物稳定且已分离。Cu(I)和Ag(I)配合物容易发生酸诱导的MC裂解,得到
咪唑烷基-2-基
亚胺盐。研究了两个膦供体的卡宾转移反应:(CO)m(L)W C [N(R)CH 2 ] 2 R = Et,苄基; L = PPh 3,m = 4;L = dppe,m = 3}。(CO)5 W C [N(CH 2 C 6 H 5)CH 2 ] 2(1c),顺式-(CO)4(PPh 3)W C [N(CH