One-step construction of unsymmetrical thioureas and oxazolidinethiones from amines and carbon disulfide <i>via</i> a cascade reaction sequence
作者:Chaochao Ding、Shaoli Wang、Yaoguang Sheng、Qian Dai、Yunjie Zhao、Guang Liang、Zengqiang Song
DOI:10.1039/c9ra04540f
日期:——
oxazolidinethiones from amines and carbondisulfide has been achieved in DMSO without addition of extra reagents. The present protocol is compatible with various secondary amines and primary amines, and suitable for intermolecular and intramolecular reactions. Diverse unsymmetrical thioureas and oxazolidinethiones were efficiently obtained in good to excellent yields via a cascade reaction sequence.
Visible-light-induced regioselective cross-dehydrogenative coupling of 2-isothiocyanatonaphthalenes with amines using molecular oxygen
作者:Ziyu Gan、Guoqing Li、Xiaobo Yang、Qiuli Yan、Guiyun Xu、Gaoyang Li、Yuan-Ye Jiang、Daoshan Yang
DOI:10.1007/s11426-020-9811-6
日期:2020.11
efficient and eco-friendly protocol for the construction of naphtho[2,1-d]thiazol-2-amines through visible-light photoredoxcatalyzed C(sp2)-H/S-H cross-dehydrogenativecouplingreactions between 2-isothiocyanatonaphthalenes and amines was established. In this reaction, the new C-N and C-S bonds are formed simultaneously in a single step. This new method provides a straightforward approach for constructing
通过可见光光氧化还原催化的2-异硫氰基萘与胺之间的C(sp 2)-H / SH交叉脱氢偶联反应,构建萘并[ 2,1- d ]噻唑-2-胺的一种高效,环保的方案是成立。在此反应中,新的CN和CS键在一个步骤中同时形成。这种新方法为构建有价值的含硫化合物提供了一种直接方法。