Group 4 metallacarboranes of constrained geometries derived from B(cage)- and C(cage)-silylamido-substituted carborane ligands: a synthetic and structural investigation
作者:Jianhui Wang、Yinghuai Zhu、Shoujian Li、Chong Zheng、John A. Maguire、Narayan S. Hosmane
DOI:10.1016/s0022-328x(03)00317-6
日期:2003.8
The reactions of RNHSi(Me)2Cl (1, R=t-Bu; 2, R=2,6-(Me2CH)2C6H3) with the carborane ligands, nido-1-Na(C4H8O)-2,3-(SiMe3)2-2,3-C2B4H5 (3) and Li[closo-1-R′-1,2-C2B10H10] (4), produced two kinds of neutral ligand precursors, nido-5-[Si(Me)2N(H)R]-2,3-(SiMe3)2-2,3-C2B4H5, (5, R=t-Bu) and closo-1-R′-2-[Si(Me)2N(H)R]-1,2-C2B10H10 (6, R=t-Bu, R′=Ph; 7, R=2,6-(Me2CH)2C6H3, R′=H), in 85, 92, and 95% yields,
RNHSi(Me)2 Cl(1,R = t -Bu; 2,R = 2,6-(Me 2 CH)2 C 6 H 3)与碳硼烷配体nido -1-Na(C 4)的反应H 8 O)-2,3-(SiMe 3)2 -2,3-C 2 B 4 H 5(3)和Li [ closo -1-R'-1,2-C 2 B 10 H 10 ](4),生产了两种中性配体前体nido -5- [Si(Me)2 N(H)R] -2,3-(SiMe 3)2 -2,3-C 2 B 4 H 5,(5,R = t -Bu)和closo -1-R'-2- [Si (Me)2 N(H)R] -1,2-C 2 B 10 H 10(6,R = t -Bu,R'= Ph; 7,R = 2,6-(Me 2 CH)2 C 6 H 3,R'= H)的产率分别为85%,92%和95%。的治疗闭合碳-2- [硅(Me)的2 NH(2,6-(ME 2 CH)2