Rearrangement and radical mediated decarboxylation of trimethylsilyl benzoates using xenon difluoride
Abstract
Treatment of trimethylsilyl benzoates 1 with xenon difluoride in CH2Cl2 or C6F6 results in a novel ester rearrangement and formation of aryl fluoroformates 2: rearrangement is not observed in MeCN solution in which the main products are arenes formed via the corresponding aryl radical.