Iron-Catalyzed Oxidative Cross-Coupling of Phenols and Tyrosine Derivatives with 3-Alkyloxindoles
作者:Tomer Mintz、Nagnath Yadav More、Eden Gaster、Doron Pappo
DOI:10.1021/acs.joc.1c02435
日期:2021.12.17
In this study, a novel iron-catalyzed oxidative cross-coupling reaction between phenols and 3-alkyloxindole derivatives is reported. The efficient method, which is based on the FeCl3 catalyst and the t-BuOOt-Bu oxidant in 1,2-dichloroethane at 70 °C, affords 3-alkyl-3-(hydroxyaryl)oxindole compounds with a high degree of selectivity. The generality of the conditions was proven by reacting various substituted
在这项研究中,报道了苯酚和 3-烷基羟吲哚衍生物之间的新型铁催化氧化交叉偶联反应。基于FeCl 3催化剂和t -BuOO t -Bu氧化剂在1,2-二氯乙烷中70 ℃高效制备3-烷基-3-(羟基芳基)羟吲哚化合物的高效方法. 通过使各种取代的酚、萘酚和酪氨酸衍生物与 3-烷基羟吲哚反应证明了条件的普遍性。为了应用化学方法将含酪氨酸的短肽与羟吲哚基丙氨酸 (Oia) 衍生物偶联,对反应条件进行了修改 [Fe(O 2 CCF 3 ) 3催化剂,t-Bu00 t -Bu、HFIP、70 °C] 和具有酸稳定N保护基团的氨基酸。