Carbazoquinocin Analogues as Small Molecule Biomimetic Organocatalysts in Dehydrogenative Coupling of Amines
作者:Samrat Kundu、Chayan Ghosh、Abhisek Metya、Ankush Banerjee、Modhu Sudan Maji
DOI:10.1021/acs.orglett.4c00229
日期:2024.3.1
biomimetic ortho-quinone catalysts structurally resembling carbazoquinocin alkaloids have been introduced to promote tunable, metal cocatalyst-free, organocatalytic, dehydrogenative amine oxidation under aerobic conditions. Differently substituted benzyl amines were tolerated under optimized conditions to provide imines in excellent yields. Further efficacy of the catalyst was demonstrated by synthesizing
一系列新的咔唑核仿生邻醌催化剂在结构上类似于卡巴喹诺星生物碱,以促进有氧条件下可调节的、无金属助催化剂的有机催化脱氢胺氧化。在优化的条件下可以耐受不同取代的苄胺,以优异的产率提供亚胺。通过有效合成交叉偶联亚胺,证明了催化剂的进一步功效。对照实验和深入的 DFT 研究揭示了共价转氨基途径作为这种新开发的催化系统的合理机制。