Synthesis of Quinoxaline Derivatives via Tandem Oxidative Azidation/Cyclization Reaction of <i>N</i>-Arylenamines
作者:Haichao Ma、Dianjun Li、Wei Yu
DOI:10.1021/acs.orglett.6b00148
日期:2016.2.19
A new method was developed for the synthesis of quinoxalines. This method employs N-arylenamines and TMSN3 as the starting materials and implements two oxidative C–N bond-forming processes in a tandem pattern by using (diacetoxyiodo)benzene as the common oxidant. The present reaction conditions are mild and simple and thus are useful in practical synthesis.
I2-Catalyzed Indole Formation via Oxidative Cyclization of N-Aryl Enamines
作者:Zhiheng He、Weiping Liu、Zhiping Li
DOI:10.1002/asia.201100045
日期:2011.6.6
Cat.′s Is: An I2‐catalyzed synthesis of indoles, taking advantage of intramolecular dehydrogenative coupling reactions of enamines, afforded a variety of multifunctionalized indole derivatives in good to excellent yields under transition‐metal‐free reaction conditions.
Development, Scope and Mechanisms of Multicomponent Reactions of Asymmetric Electron-Deficient Alkynes with Amines and Formaldehyde
作者:Hua Cao、Xiujun Wang、Huanfeng Jiang、Qiuhua Zhu、Min Zhang、Haiyang Liu
DOI:10.1002/chem.200801471
日期:——
pyrimidine derivatives are presented herein: 1) A catalyst-free multicomponent reaction of electron-deficient alkynes, aliphatic amines and formaldehyde and 2) Ag(I)-catalyzedsynthesis of pyrimidines from electron-deficient alkynes, anilines and formaldehyde by a dominoreaction. Under optimized conditions, the multicomponent reactions were accomplished with high regioselectivity and excellent yields. A computational