1,3-二(2,6-二甲基苯基)-2-四氢咪唑基-苯亚甲基-二吡啶基-二氯合钌化合物的合成

Synthesis of 1,3-Bis(2,6-dimethylphenyl)-2-tetrahydroimidazol-(C_5H_5N)_2(Cl)_2Ru=CHPh

设计了由1,3-二(2,6-二甲基苯基)-2-四氢咪唑基-苯亚甲基-三苯基膦-二氯合钌(7)和吡啶反应生成无膦型金属钌卡宾化合物1,3-二(2,6-二甲苯基)-2-四氢咪唑基-苯亚甲基-2-吡啶基-二氯合钌(8),8作为高效催化剂用于丙烯腈和烯丙基苯的交叉交互置换反应.新化合物7,8经核磁共振氢谱、碳谱和高分辨率质谱予以证实.

The free-phosphine carbene ruthenium complex [1,3-bis（2,6-dimethylphenyl）-2-tetrahydroimi-dazol]（C5H5N）2（Cl）2Ru=CHPh （8） was prepared by the reaction of [1,3-bis（2,6-dimethylphenyl）-2-tetrahydroimidazol]（PPh3）（Cl）2Ru=CHPh （7） with pyridine and used as a highly effective catalyst for the cross metathesis of acrylonitrile with allylbenzene. The structures of new compounds 7 and 8 were identified by ^1H NMR, ^13C NMR and HRMS spectra.