A general and practicable synthesis of polycyclic heteroaromatic compounds. Part 1. Use of a putative quinolone-quinone-methide in the synthesis of polycyclic heteroaromatic compounds
作者:Janet L. Asherson、Douglas W. Young
DOI:10.1039/p19800000512
日期:——
A general and straightforward new synthesis of polycyclic heteroaromatic compounds has been developed. In the synthesis a putative quinolone-quinone-methide is generated in the presence of an aniline. The ensuing reaction results in a polycyclic heteroaromatic product. In the most useful approach, a hemiacetal (25) is prepared in one step from the parent quinolone and this is heated in the presence
已经开发了多环杂芳族化合物的一般直接的新合成方法。在合成中,在苯胺的存在下会生成假定的喹诺酮-醌-甲基化物。随后的反应产生多环杂芳族产物。在最有用的方法中,一步法由母体喹诺酮制备半缩醛(25),并将其在芳族胺存在下加热,以高收率生产多环杂芳族化合物。该反应的区域特异性与Skraup合成中关于醌-甲基化物组分所预期的区域特异性相反。但是,就苯胺成分而言,区域特异性与Skraup合成中的区域特异性相同。