Metal carbonyl chemistry. Part V. Reactions of fluoro-olefins with octacarbonyldicobalt
作者:B. L. Booth、R. N. Haszeldine、P. R. Mitchell、J. J. Cox
DOI:10.1039/j19690000691
日期:——
reacts with the fluoro-olefins CF2:CF2, CF2:CFCl, or CF2:CFBr at 100° to give nonacarbonyl-(trifluoromethylcarbon)tricobalt, CF3·CCo3(CO)9, in high yields. At lower temperatures, or with a shorter reaction time, tetrafluoroethylene gives mainly µ-tetrafluoroethylenebis(tetracarbonylcobalt), (OC)4Co·CF2·CF2·Co(CO)4, which rearranges quantitatively when heated in vacuo to form the novel compound, µ-t
八羰基二钴与氟烯烃CF 2:CF 2,CF 2:CFCl或CF 2:CFBr在100°下反应,以高收率得到九羰基-(三氟甲基碳)三钴,CF 3 ·CCo 3(CO)9。在较低的温度或较短的反应时间下,四氟乙烯主要生成µ-四氟乙烯双(四羰基钴),(OC)4 Co·CF 2 ·CF 2 ·Co(CO)4,在真空中加热时定量重新排列以形成新颖的化合物µ-四氟亚乙基-µ-羰基-双(三羰基钴),(OC)3 Co(CF·CF 3)(CO)Co(CO)3。从这些中间化合物的角度讨论了由四氟乙烯形成CF 3 ·CCo 3(CO)9的机理。