Synthesis of <i>N</i>-(Hetero)aryl Carbamates via CuI/MNAO Catalyzed Cross-Coupling of (Hetero)aryl Halides with Potassium Cyanate in Alcohols
作者:S. Vijay Kumar、Dawei Ma
DOI:10.1021/acs.joc.7b03175
日期:2018.3.2
to N-(hetero)aryl carbamates was developed through CuI/MNAO [2-((2-methylnaphthalen-1-yl)amino)-2-oxoacetic acid] catalyzed cross-coupling of (hetero)aryl chlorides with potassium cyanate in alcohols at 120–130 °C. This method utilizes broadly available substrates to afford various N-(hetero)aryl carbamates in good to excellent yields. Moreover, (hetero)aryl bromides and (hetero)aryl iodides were also
通过CuI / MNAO [2-(((2-甲基萘-1-基)氨基)-2-氧乙酸]]催化(杂)芳基氯化物与钾的交叉偶联,开发了一种N-(杂)芳基氨基甲酸酯的有效途径醇中的氰酸盐在120–130°C下。该方法利用广泛可用的底物以良好至优异的产率提供各种N-(杂)芳基氨基甲酸酯。此外,(杂)芳基溴化物和(杂)芳基碘化物也以低催化剂负载量和相对较低的温度反应以提供N-(杂)芳基氨基甲酸酯。