Two C–O Bond Formations on a Carbenic Carbon: Palladium-Catalyzed Coupling of <i>N</i>-Tosylhydrazones and Benzo-1,2-quinones To Construct Benzodioxoles
作者:Huanfeng Jiang、Fulin Chen、Chuanle Zhu、Rui Zhu、Hao Zeng、Chi Liu、Wanqing Wu
DOI:10.1021/acs.orglett.8b00888
日期:2018.6.1
A novel and efficient method for the formation of two C–O bonds on a carbenic carbon is reported. This palladium-catalyzed coupling of N-tosylhydrazones and benzo-1,2-quinones were involved the process of carbonyl ylides generation, aromatization, and intramolecular nucleophilic addition, delivering various useful benzodioxoles in high yields.
报道了一种新颖有效的方法,可在羧基碳上形成两个C-O键。N-甲苯磺酰hydr和苯并1,2-醌的钯催化偶合涉及羰基酰化物生成,芳构化和分子内亲核加成的过程,以高收率递送各种有用的苯并二恶唑。