Spiroborate catalyzed reductions with N,N-diethylaniline borane
作者:Brian M. Coleridge、Thomas P. Angert、Lucas R. Marks、Patrick N. Hamilton、Christopher P. Sutton、Karl Matos、Elizabeth R. Burkhardt
DOI:10.1016/j.tetlet.2010.09.022
日期:2010.11
Reduction of esters, amides, and ketones by N,N-diethylaniline borane is accelerated by catalysts derived from spiroborate complexes. Esters are reduced at ambient temperature in less than 4 h with this amine borane and 5 mol % spiroborate 6. Functional group selectivity shows ketone and tertiary amide reduction is faster than ester or nitrile reduction.
An Aluminum Dihydride Working as a Catalyst in Hydroboration and Dehydrocoupling
作者:Zhi Yang、Mingdong Zhong、Xiaoli Ma、Karikkeeriyil Nijesh、Susmita De、Pattiyil Parameswaran、Herbert W. Roesky
DOI:10.1021/jacs.6b00032
日期:2016.3.2
The well-defined aluminum dihydride LAlH2 (L = HC(CMeNAr)2, Ar = 2,6-Et2C6H3) (1) operates in catalysis like a transition metal complex. The catalytic activity of 1 for hydroboration of terminal alkynes was investigated. Furthermore, catalyst 1 effectively initiated the dehydrocoupling of boranes with amines, thiols, and phenols, respectively, to form compounds with B-E bonds (E = N, S, O) under elimination