Room Temperature, Reductive Alkylation of Activated Methylene Compounds: Carbon–Carbon Bond Formation Driven by the Rhodium-Catalyzed Water–Gas Shift Reaction
作者:Scott E. Denmark、Malek Y. S. Ibrahim、Andrea Ambrosi
DOI:10.1021/acscatal.6b03183
日期:2017.1.6
The rhodium-catalyzed water–gas shift reaction has been demonstrated to drive the reductive alkylation of several classes of activated methylene compounds at room temperature. Under catalysis by rhodium trichloride (2–3 mol %), carbon monoxide (10 bar), water (2–50 equiv), and triethylamine (2.5–7 equiv), the scope has been successfully expanded to cover a wide range of alkylating agents, including
铑催化的水煤气变换反应已被证明可在室温下驱动几类活化的亚甲基化合物的还原烷基化反应。在三氯化铑(2-3%摩尔),一氧化碳(10 bar),水(2-50当量)和三乙胺(2.5-7当量)的催化下,其范围已成功扩大,涵盖了广泛的烷基化反应中等至高产率的包括脂肪族和芳香族醛以及环状酮在内的助剂。在某些方面,该方法与现有的还原烷基化方案相当,并且在某些方面超过了该方法。