Iron‐Catalyzed Cleavage Reaction of Keto Acids with Aliphatic Aldehydes for the Synthesis of Ketones and Ketone Esters
作者:Fangyuan Zhou、Lesong Li、Kao Lin、Feng Zhang、Guo‐Jun Deng、Hang Gong
DOI:10.1002/chem.202000114
日期:2020.4
The radical-radical coupling reaction is an important synthetic strategy. In this study, the iron-catalyzed radical-radical cross-coupling reaction based on the decarboxylation of keto acids and decarbonylation of aliphatic aldehydes to obtain valuable aryl ketones is reported for the first time. Remarkably, when tertiary aldehydes were used as carbonyl sources, ketone esters were selectively obtained
自由基-自由基偶联反应是重要的合成策略。在这项研究中,首次报道了基于酮酸的脱羧和脂族醛的脱羰作用的铁催化的自由基-自由基交叉偶联反应,以得到有价值的芳基酮。显着地,当使用叔醛作为羰基源时,选择性地获得了酮酯而不是酮。通过仅使用3mol%的铁催化剂,容易通过该策略克级制备芳基酮。作为概念验证,使用该策略分两步合成了生物活性分子氟草胺醇。