作者:Alexey L. Trifonov、Alexander D. Dilman
DOI:10.1021/acs.orglett.1c02603
日期:2021.9.3
A diversity-oriented and C2-selective synthesis of difluoroalkyl-substituted heteroarenes from three fragments, N-methoxyazinium salts, difluorocarbene, and electrophilic or radical reagents, is described. The reaction proceeds via the addition of difluorinated phosphorus ylide to in situ methylated heteroarene N-oxides, leading to phosphonium salts, which can undergo further transformations under
描述了从三个片段、N-甲氧基
肼盐、
二氟卡宾和亲电子或自由基试剂合成二氟烷基取代的杂
芳烃的多样性导向和 C2 选择性合成。该反应通过将二
氟化
磷叶立德添加到原位甲基化杂
芳烃N-氧化物中进行,产生
鏻盐,其可以在碱性或光诱导条件下进行进一步的转化。