time: 60 min (5 min); yield: 97.6% (>99%); TOF: 292.8 h–1 (356.4 h–1)] and B2O3 (3f). Mechanistic studies show that the Al–H bond in complex 2 activated CO2 to form [ClC(PPh2NMes)2Al(H)OC(O)H}] (4), which was subsequently reacted with BH3·SMe2 to form 3e and 3f, along with the regeneration of complex 2. Complex 2 also shows good catalytic activity toward the hydroboration of carbonyl, nitrile, and
这项研究描述了首次使用双(
磷烷基)甲
氨基铝
氢化物[ClC(PPh 2 NMes)2 AlH 2(2,Mes = Me 3 C 6 H 2),用于CO 2的催化加氢
硼化。通过在-78°C下在
甲苯中使类
胡萝卜素锂[Li(Cl)C(PPh 2 NMes)2 ]与2当量的AlH 3 ·NEtMe 2反应,合成了配合物2。2(10 mol%)能够催化HBpin在C 6 D 6中还原CO 2在110°C的温度下放置2天,得到甲氧基
硼烷[MeOBpin](3a;产率:78%,TOF:0.16 h –1)和双(
硼基)氧化物[pinBOBpin](3b)的混合物。当使用更有效的[BH 3 ·SMe 2 ]代替HBpin时,催化反应极纯,导致形成
硼酸三甲酯[B(OMe)3 ](3e)[催化负载量:1 mol%(10 mol) %); 反应时间:60分钟(5分钟);产率:97.6%(> 99%);TOF:292