Reactions of low-valent metal complexes with fluorocarbons. Part XII. Fluoro-olefin reactions of zerovalent nickel complexes
作者:C. S. Cundy、M. Green、F. G. A. Stone
DOI:10.1039/j19700001647
日期:——
Bis(cyclo-octa-1,5-diene)nickel reacts with perfluoropropene to give (1,5-C8H12)Ni(C3F6)(I), which reacts with triphenyl- or triethyl-phosphine to afford (Ph3P)2Ni(C3F6)(IIa) and (Et3P)2Ni(C3F6)(IIb), respectively. The zerovalent nickel compounds (1,5-C8H12)(Et3P)2Ni, (1,5-C8H12)[(Bun)3P]2Ni, [(Ph2PCH2)2][(Bun)3P]2Ni, (Et3P)4Ni, and (Ph2PMe)4Ni, react with tetrafluoroethylene to give the stable crystalline
双(环-八-1,5-二烯)镍与全氟丙烯反应生成(1,5-C 8 H 12)Ni(C 3 F 6)(I),与三苯基或三乙基膦反应生成(Ph 3 P)2 Ni(C 3 F 6)(IIa)和(Et 3 P)2 Ni(C 3 F 6)(IIb)。零价镍化合物(1,5-C 8 H 12)(Et 3 P)2 Ni,(1,5-C 8 H 12)[(Bu n)3 P] 2 Ni,[(Ph2 PCH 2) 2 ] [(Bu n) 3 P] 2 Ni,(Et 3 P) 4 Ni和(Ph 2 PMe) 4 Ni与四氟乙烯反应,得到稳定的结晶八氟镍弹性环戊烷络合物L 2 Ni(CF 2) 4(L = Et 3 P,Bu n 3 P或Ph 2 PMe;或L 2 = Ph 2 PCH 2 CH 2 PPh 2)。这些配合物容易发生配体交换反应,在某些情况下,通过用2,2'-联吡啶或环辛-1,5-二烯和溴化锌处理,可以得到结晶衍生物C