The evaluation in hydrosilylation catalysis of six new benzo[h]quinoline-derived acetonitrilo pentamethylcyclopentadienyl iridium(III) tetrakis(3,5-bis-trifluoromethylphenyl)borate salts bearing different substituents −X (−OMe, −H, −Cl, −Br, −NO2 and −(NO2)2) at the heterochelating ligand shows direct substituent dependence consistent with the electrophilic activation of the hydrosilane by the precatalyst
六种新型苯并[ h ]
喹啉衍生的带有不同取代基−X(−OMe,−H,−Cl,−Br)的
乙腈五
甲基环戊二烯基铱(III)四(3,5-双三
氟甲基苯基)
硼酸盐的氢化
硅烷化催化评价,-NO 2和-(NO 2 ) 2 )在杂螯合
配体上表现出直接的取代基依赖性,这与预催化剂对氢
硅烷的亲电活化一致。