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.