Metal-Free Synthesis of 2-Aminobenzothiazoles via Iodine-Catalyzed and Oxygen-Promoted Cascade Reactions of Isothiocyanatobenzenes with Amines
作者:Yuanshuang Xu、Bin Li、Xinying Zhang、Xuesen Fan
DOI:10.1021/acs.joc.7b01683
日期:2017.9.15
the cascade reactions of isothiocyanatobenzenes with primary or secondaryamines by using iodine as a catalyst and oxygen as an oxidant is presented. Mechanistically, the formation of the title compounds involves the in situ formation of the required benzothiourea intermediate followed by its intramolecular cross dehydrogenativecoupling of a C(sp2)–H bond and a S–H bond. To our knowledge, this should
<scp>Metal‐Free</scp> Synthesis of <scp>2‐Aminobenzothiazoles</scp> via <scp>I<sub>2</sub>‐Catalyzed</scp> Tandem Cyclization Reaction of Amines and Carbon Disulfide
作者:Ting Chen、Wei Feng、Ruitong Yang、Shanping Chen、Guo‐Jun Deng
DOI:10.1002/cjoc.202300610
日期:2024.4.15
A convenient approach for the construction of 2-aminobenzothiazoles via I2-catalyzed tandem cyclization reaction of amines and carbondisulfide has been developed. The present approach starts from simple and readily available starting materials, affording a series of 2-aminobenzothiazoles in up to 89% yields under metal-free conditions. In this work, C—H/N—H functionalization was achieved and multiple
开发了一种通过 I 2催化胺和二硫化碳的串联环化反应构建 2-氨基苯并噻唑的简便方法。本方法从简单且易于获得的起始原料开始,在无金属条件下以高达 89% 的产率提供一系列 2-氨基苯并噻唑。在这项工作中,实现了C—H/N—H功能化,并在一锅中成功构建了多个C-杂键。
Kresze, Guenter; Hatjiissaak, Anastassios, Phosphorus and Sulfur and the Related Elements, 1987, vol. 29, p. 41 - 48