coupling of an α-C–H bond in alcohols with 2-arylacetaldehydes through a [1,3]-hydride transfer ([1,3]-HT) of oxocarbenium ions catalyzed by a Lewis acid has been developed. The redox neutral preparation of the isochroman derivatives proceeds via a tandem condensation/[1,3]-HT/Friedel–Crafts sequence with moderate to good yields. Deuterium-labeling studies provide mechanistic insights and reveal that the
                                    一种史无前例的方法,该方法通过
路易斯酸催化的氧碳鎓离子的[1,3]-
氢化物转移([1,3] -HT)使醇中的α-CH键与2-芳基
乙醛直接偶联,已开发。
异色满衍
生物的氧化还原中性制备是通过串联缩合/ [1,3] -HT / Friedel-Crafts序列进行的,产率中等至良好。
氘标记的研究提供了机理上的见解,并揭示了氧化还原功能化是通过[1,3] -HT进行的。