Aryl nitrile oxide cycloaddition reactions in the presence of pinacol boronic acid ester
作者:Sarah L Harding、Sebastian M Marcuccio、G Paul Savage
DOI:10.3762/bjoc.8.67
日期:——
An aryl substrate with dual functionality consisting of a nitrileoxide and a pinacolyl boronate ester was prepared by mild hypervalent iodine oxidation (diacetoxyiodobenzene) of the corresponding aldoxime, without decomposition of the boronate functionality. The nitrileoxide was trapped in situ with a variety of dipolarophiles to yield aryl isoxazolines with the boronate ester function intact and