the presence of anhydrous sodium carbonate it gave [PtCl2(Ph2P)2CHCH2CH(COMe)(CO2Et)}](10) or [PtCl2(Ph2P)2CHCH2CH(COMe)2}](11), respectively. On prolonged treatment of (1a) with sodium iodide in acetone, acetone added to the vinylidene double bond to give [PtI2(Ph2P)2CHCH2CH2COMe}](13a). The di-iodo-complex [PtI2(vdpp-PP′)](1b) was prepared by treating (1a) with NBun4I in dichloromethane. Complex
用(Ph 2 P)2 C CH 2(vdpp)在
二氯甲烷中处理[PtCl 2(NCBu t)2 ],得到[PtCl 2(vdpp- PP ')](1a)。用多种胺或NN-二甲基
肼在
二氯甲烷中处理(1a),可快速获得迈克尔加成产物,收率很高,即。[PtCl 2 (Ph 2 P)2 -CHCH 2 NHR}] [R = NMe 2(2a),CH 2 CH CH 2(3),D -CHMePh(4)或CH 2 C 6 H 4 OMe-4(5a)]。与[PtMe 2(vdpp- PP ')]相比,复合物(1a)对迈克尔加成的反应性更高;因此它与H 2 NC 6 H 4 Me-4或H 2 NCH 2 CO 2 Et形成加合物,即。[PtCl 2 (Ph 2 P)6 CHCH 2 NHC 6 H 4 Me-4}](7)或[PtCl 2 (Ph 2 P)2 CHCH 2 NHCH 2 CO 2 Et