An efficient Au-catalyzed synthesis of isomukonidine, clausine L, mukonidine, glycosinine, mukonal, and clausine V from propadienyl methyl ether
作者:Youai Qiu、Dengke Ma、Chunling Fu、Shengming Ma
DOI:10.1039/c2ob27432a
日期:——
Naturally occurring carbazole alkaloids such as isomukonidine, clausine L, mukonidine, glycosinine, mukonal, and clausine V have been synthesized through a gold-catalyzed cyclization reaction of 1-(indol-2-yl)-2-methoxy-2,3-allenols, which are readily available from indolecarbaldehydes and methoxypropadiene. Compared to the reported procedures, our approach is general, atom economic, highly selective, and the starting materials are easily available.
通过金催化的 1-(吲哚-2-基)-2-甲氧基-2,3-烯醇的环化反应,合成了天然的咔唑生物碱,如异木烷基、木烷碱 L、木烷碱、甘苷碱、木醛碱和木烷碱 V。与已报道的程序相比,我们的方法具有通用性、原子经济性、高选择性,而且起始原料很容易获得。