Effect of anchoring group and valent of cobalt center on the competitive cleavage of C–F or C–H bond activation
作者:Tingting Zheng、Hongjian Sun、Jun Ding、Yanfeng Zhang、Xiaoyan Li
DOI:10.1016/j.jorganchem.2010.04.031
日期:2010.7
of CoMe(PMe3)4 with 2,6-difluorobenzophenone imine and 2,6-difluorobenzophenone resulted in C–H bond activation complex, [Co(2-C6H4)-(CNH)-(2′,6″-F2C6H3)(PMe3)3] (2), and C–F bond activation complex [Co(Me)(F)(2-(6-FC6H3)-(CO)-C6H5)(PMe3)2] (3) respectively. Using Co(PMe3)4 instead of CoMe(PMe3)4 the C–F activation Co(І) complex [Co(2-(6-FC6H3)-(CNH)-C6H5)(PMe3)3] (1), was obtained by the reaction of
用2,6-二氟二苯甲酮亚胺和2,6-二氟二苯甲酮处理CoMe(PMe 3)4导致C-H键活化复合物[Co(2-C 6 H 4)-(C NH)-(2′, 6“ -F 2 C 6 H 3)(PMe 3)3 ] (2)和C-F键活化复合物[Co(Me)(F)(2-(6-FC 6 H 3)-(C O)- C 6 H 5)(PMe 3)2 ] (3)。使用Co(PMe 3)4代替CoMe(PMe 3)4在C - ˚F活化的Co(І)络合物[CO(2-(6--FC 6 H ^ 3) - (C NH)-C 6 H ^ 5)(PME 3)3 ] (1) ,其通过获得Co(PMe 3)4与2,6-二氟二苯甲酮亚胺的反应。在单氟化芳族酮的情况下,CoMe(PMe 3)4与2,4'-二氟二苯甲酮的反应仅提供C-H键活化复合物,[Co(2-(4-FC 6 H 3)-( C O)-(2'-FC 6 H 4)(PMe