Pd(II)-Catalyzed Annulation Reactions of Epoxides with Benzamides to Synthesize Isoquinolones
作者:Huihong Wang、Fei Cao、Weiwei Gao、Xiaodong Wang、Yuhang Yang、Tao Shi、Zhen Wang
DOI:10.1021/acs.orglett.0c04097
日期:2021.2.5
Epoxides as alkylating reagents are unprecedentedly applied in Pd(II)-catalyzed C–H alkylation and oxidative annulation of substituted benzamides to synthesize isoquinolones rather than isochromans, which is accomplished through alerting the previously reported reaction mechanism by the addition of oxidant and TEA. Under these conditions, various isoquinolones have been prepared with yields up to 92%
环氧化合物作为烷基化试剂已史无前例地应用于Pd(II)催化的CH烷基化和取代的苯甲酰胺的氧化环化反应,以合成异喹诺酮而不是异色满,这是通过提醒氧化剂和TEA来警告先前报道的反应机理而实现的。在这些条件下,已制备了各种异喹诺酮,收率高达92%。另外,该方法已经以一种方便的方式成功地用于了卢比西替利,siamine和cassiarin A的全部合成中。