CFC replacement HCFC-133a (CF3CH2Cl) as a convenient precursor for the synthesis of chlorodifluorovinyl-metal derivatives of main group and transition metal elements: the first X-ray structural characterisation of chlorodifluorovinyl-containing organometallic complexes
作者:Nicholas A Barnes、Alan K Brisdon、Wendy I Cross、Joseph G Fay、Jacqueline A Greenall、Robin G Pritchard、James Sherrington
DOI:10.1016/s0022-328x(00)00565-9
日期:2000.12
The one-pot reaction of the CFC replacement 1-chloro-2,2,2-trifluoroethane (CF3CH2Cl, HCFC-133a) with two equivalents of butyllithium in diethylether at −78°C followed by the addition of main group or transition metal halides results in good yields of the metal-chlorodifluorovinyl-containing compounds R3Sn(CClCF2) R=Me, Et, Bu}, Sn(CClCF2)4, Sb(CClCF2)3, Hg(CClCF2)nCl(2−n) (n=1,2), trans-[Ni(CClCF2)2(PBu3)2]
在-78°C下,将CFC取代的1-氯-2,2,2-三氟乙烷(CF 3 CH 2 Cl,HCFC-133a)与二当量的丁基锂在乙醚中进行一锅反应,然后添加主基或过渡金属卤化物导致含金属chlorodifluorovinyl-化合物中,R的良好产率3 SN(CClCF 2)R =甲基,乙基,卜},锡(CClCF 2)4,锑(CClCF 2)3,Hg(上CClCF 2)ñ氯(2- ñ)(ñ = 1,2),反式- [镍(CClCF 2)2(PBU 3)2 ],反式-[Pd(CCl 3 CF 2)2(PBu 3)2 ]和[Au(CCl 3 CF 2)(PPh 3)]。汞柱(CClCF的分子结构2)氯,反式- [钯(CClCF 2)2(BU 3 P)2 ]和[金(CClCF 2)(PPH 3)]已从单一获得水晶数据 这些是关于任何含氯二氟乙烯基的有机金属配合物的第一个此类结构数据。的[AU(CFCF分子结构2)(PPH