Regio- and stereo-selectivity in the hydrogenation of aryl phosphines by niobium aryloxide compounds
作者:Mark C. Potyen、Ian P. Rothwell
DOI:10.1039/c39950000849
日期:——
The sequential hydrogenation of the three aryl rings in PPh3 by the catalyst system [Nb(OC6HPh4-2,3,5,6)3Cl2]/3BunLi occurs with relative rates of 39 : 28 : 1; NMR analysis of the PhPCy2 obtained from [P(C6D5)3/H2] and [P(C6H5)3/D2] shows a predominately all cis hydrogenation of both aryl rings has occurred.
通过催化体系[Nb(OC6HPh4-2,3,5,6)3Cl2]/3BunLi,PPh3中三个芳环的连续氢化反应的相对速率为39 : 28 : 1;从[P(C6D5)3/H2]和[P(C6H5)3/D2]获得的PhPCy2的NMR分析显示两个芳环的氢化主要为全顺式氢化。