Reactivity of Pyrido[4,3,2-<i>kl</i>]acridines: Regioselective Formation of 6-Substituted Derivatives
作者:Laurent Bouffier、Martine Demeunynck、Anne Milet、Pascal Dumy
DOI:10.1021/jo0487855
日期:2004.11.1
and the Vilsmeier−Haack reaction. The reaction is fully regioselective and gives the corresponding 6-substituted derivatives. The pyrido[4,3,2-kl]acridin-4-one reacts with amines and thiol, via 1,4-Michael addition to give the 6-amino or 6-thio analogues in a very efficient way. Molecular calculations account for the observed regioselectivity.
吡啶并[4,3,2- kl ] ac啶代表一类新的杂环,海洋生物碱的异构体。7 H-吡啶并[4,3,2- kl ] ac啶以富电子杂环的形式发生反应,特别是通过亲电取代(例如H / D交换和Vilsmeier-Haack反应)进行反应。该反应是完全区域选择性的,并给出相应的6-取代的衍生物。吡啶并[4,3,2- kl ] ac啶-4-酮与胺和硫醇反应,通过1,4-迈克尔加成以非常有效的方式得到6-氨基或6-硫代类似物。分子计算解释了所观察到的区域选择性。