Rh(III)-Catalyzed Selective Coupling of N-Methoxy-1H-indole-1-carboxamides and Aryl Boronic Acids
摘要:
A Rh(III)-catalyzed selective coupling of N-methoxy-1H-indole-1-carboxamide and aryl boronic acids is reported. The coupling is mild and efficient toward diverse product formation, with selective C-C and C-C/C-N bond formation. Kinetic isotope effects studies were conducted to reveal a mechanism of C H activation and electrophilic addition.
Easy synthesis of imidazo[1,5-<i>a</i>]indol-3-ones through Rh(<scp>iii</scp>)-catalyzed C–H allenylation/annulation
作者:Bin Zhu、Zhenyu Yao、Lang Huang、Xiuling Cui
DOI:10.1039/d1cc04359e
日期:——
A highly efficient and regioselective synthesis of imidazo[1,5-a]indol-3-ones has been developed via a sequential C–H allenylation/annulation startingfrom easily available N-methoxycarbamoyl indoles and propargyl alcohols, in which the propargyl alcohols served as a C1 synthon. This strategy displays excellent regioselectivity, high atom economy and tolerates a broad substrate scope.
咪唑并[1,5 - a ] indol -3-ones的高效和区域选择性合成已通过连续的C - H烯丙基化/环化从易于获得的N-甲氧基氨基甲酰基吲哚和炔丙醇开始,其中炔丙醇用作作为 C1 合成子。该策略显示出优异的区域选择性、高原子经济性和广泛的底物范围。