An annulation method for the synthesis of highly substituted polycyclic aromatic and heteroaromatic compounds
作者:Rick L. Danheiser、Ronald G. Brisbois、James J. Kowalczyk、Raymond F. Miller
DOI:10.1021/ja00164a033
日期:1990.4
A general strategy for the synthesis of highly substituted polycyclic aromatic and heteroaromatic compounds has been developed. The new aromatic annulation is achieved simply by the irradiation of a dichloroethane solution of an acetylene derivative and a vinyl or aryl α-diazo ketone. Mechanistically, the reaction proceeds via the photochemical Wolff rearrangement of the diazo ketone to generate an
已经开发了合成高度取代的多环芳族和杂芳族化合物的一般策略。通过辐照乙炔衍生物和乙烯基或芳基α-重氮酮的二氯乙烷溶液,可以简单地实现新的芳香环化。从机制上讲,该反应通过重氮酮的光化学沃尔夫重排进行,生成芳基或乙烯基烯酮,然后是三个周环反应的级联反应。用该方法可制备多种取代酚类、萘类、苯并呋喃类、苯并噻吩类、吲哚类、咔唑类