Pd-Catalyzed Approach for Assembling 9-Arylacridines via a Cascade Tandem Reaction of 2-(Arylamino)benzonitrile with Arylboronic Acids in Water
作者:Xuanzeng Ye、Beihang Xu、Jiani Sun、Ling Dai、Yinlin Shao、Yetong Zhang、Jiuxi Chen
DOI:10.1021/acs.joc.0c01654
日期:2020.10.16
novel palladium-catalyzed protocol for the synthesis of 9-arylacridines via tandem reaction of 2-(arylamino)benzonitrile with arylboronic acids in water has been developed with good functional group tolerance. The present synthetic route could be readily scaled up to gram quantity without difficulty. This methodology was further extended to the synthesis of a 4′-OH derivative, which showed estrogenic
已经开发了一种新颖的钯催化方案,该方案通过2-(芳基氨基)苄腈与芳基硼酸在水中的串联反应合成9-芳基吡啶,具有良好的官能团耐受性。本合成路线可以容易地按比例放大至克量而没有困难。该方法被进一步扩展到具有雌激素生物活性的4'-OH衍生物的合成。初步的机械实验表明,这种转变涉及芳基钯物种向腈的亲核加成,以生成芳基酮中间体,然后进行分子内Friedel-Crafts酰化和脱水成to啶。