Alkyltriflones in the Ramberg–Bäcklund Reaction: An Efficient and Modular Synthesis of <i>gem</i>-Difluoroalkenes
作者:Yuuki Maekawa、Masakazu Nambo、Daisuke Yokogawa、Cathleen M. Crudden
DOI:10.1021/jacs.0c07924
日期:2020.9.16
of gem-difluoroalkenes through the Ramberg-Bäcklund reaction of alkyl triflones is described herein. Structurally diverse, fully-substituted gem-difluoroalkenes that are difficult to prepare by other methods can be easily prepared from readily available triflones by treatment with specific Grignard reagents. Experimental and computationalstudies provide insight into the unique and critical role of
A new approach toward the synthesis of aryl triflones was achieved by the formalinsertion of arynes into C–SO2CF3 bonds. This reaction proceeds through addition of CF3SO2-containing nucleophiles to the in situ generated arynes and subsequent intramolecular rearrangement.
通过将芳烃正式插入C–SO 2 CF 3键中,实现了一种新的芳基三氟酮合成方法。该反应通过将含CF 3 SO 2的亲核试剂添加到原位生成的芳烃中并随后进行分子内重排而进行。