Radical Desulfur‐Fragmentation and Reconstruction of Enol Triflates: Facile Access to α‐Trifluoromethyl Ketones
作者:Xiaolong Su、Honggui Huang、Yaofeng Yuan、Yi Li
DOI:10.1002/anie.201608507
日期:2017.1.24
efficient oxidative radical desulfur‐fragmentation and reconstruction of enol triflates for the synthesis of α‐CF3 ketones. Preliminary mechanistic studies disclosed that oxidative fragmentation to release a CF3 radical from the triflyl group of enol triflate and subsequent addition of the CF3 radical to another enol triflate form the desired α‐CF3 ketones. This method provides a new approach to α‐CF3
我们报告的有效氧化自由基脱硫-断裂和烯醇三氟甲磺酸酯的重建为α-CF的合成3酮。初步机理研究公开,氧化断裂以释放CF 3从三氟甲磺酰基烯醇三氟甲磺酸的和随后加入CF的自由基3自由基另一烯醇三氟甲磺酸形成所需的α-CF 3酮。这种方法提供了一种新的方法,以α-CF 3个酮类,具有氧化剂的催化量,广泛的底物范围,和电势以控制区域选择性的利用率。