Synthesis of trifluoromethylated isoxazoles and their elaboration through inter- and intra-molecular C–H arylation
作者:Jian-Siang Poh、Cristina García-Ruiz、Andrea Zúñiga、Francesca Meroni、David C. Blakemore、Duncan L. Browne、Steven V. Ley
DOI:10.1039/c6ob00970k
日期:——
conditions for the preparation of a range of trifluoromethylated isoxazole building blocks through the cycloaddition reaction of trifluoromethyl nitrile oxide. It was found that controlling the rate (and therefore concentration) of the formation of the trifluoromethyl nitrile oxide was Critical for the preferential formation of the desired isoxazole products versus the furoxan dimer. Different conditions were