AN AB-INITIO INVESTIGATION OF THE RH-I-CATALYZED HYDROBORATION OF C=C BONDS - EVIDENCE FOR HYDROGEN MIGRATION IN THE KEY STEP

被引:65
作者
DORIGO, AE [1 ]
SCHLEYER, PV [1 ]
机构
[1] UNIV ERLANGEN NURNBERG,INST ORGAN CHEM 1,COMP CHEM CENTRUM,D-91054 ERLANGEN,GERMANY
来源
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH | 1995年 / 34卷 / 01期
关键词
AB INITIO CALCULATIONS; RHODIUM COMPOUNDS; CATALYSIS; HYDROBORATIONS;
D O I
10.1002/anie.199501151
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Participation of several 14‐electron complexes as intermediates in the [Rh(PH3)3Cl]‐catalyzed addition of BH3 to alkenes is suggested by results of ab initio pseudopotential computations, which also indicate a preference for migration of a hydrogen atom rather than the BH2 group to the C  C bond in the key step. The calculations also provide a rationale for the diastereoselectivity of the reaction. The structure calculated for one of the intermediates is shown on the right. (Figure Presented.) Copyright © 1995 by VCH Verlagsgesellschaft mbH, Germany
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页码:115 / 118
页数:4
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