Chemoselectivity of rhodium carbenoids. A comparison of the selectivity for OH insertion reactions or carbonyl ylide formation versus aliphatic and aromatic CH insertion and cyclopropanation
作者:Geoffrey G. Cox、Christopher J. Moody、David J. Austin、Albert Padwa
DOI:10.1016/s0040-4020(01)81876-7
日期:1993.6
A range of diazocarbonyl compounds 1–9 containing two different functional groups has been prepared, and their rhodium(II) catalyseddecomposition studied as a means of probing the chemoselectivity of carbenoid intermediates. The results indicate that whereas OH insertionreactions predominate over cyclopropanation and aromaticinsertionreactions, carbonyl ylide formation vs. other competing processes