The Direct C–H Difluoromethylation of Heteroarenes Based on the Photolysis of Hypervalent Iodine(III) Reagents That Contain Difluoroacetoxy Ligands
作者:Ryu Sakamoto、Hirotaka Kashiwagi、Keiji Maruoka
DOI:10.1021/acs.orglett.7b02416
日期:2017.10.6
In this letter, an efficient method for the photolytic generation of difluoromethyl radicals from [bis(difluoroacetoxy)iodo]benzene reagents is described. The present approach enables the introduction of difluoromethyl groups into various heteroarenes under mild conditions in the absence of any additional reagents or catalysts.
在这封信中,描述了一种由[双(二氟乙酰氧基)碘]苯试剂光解生成二氟甲基自由基的有效方法。本方法能够在温和条件下在没有任何其他试剂或催化剂的情况下将二氟甲基基团引入各种杂芳烃中。