Synthesis of Quinoline-2-thiones via Tandem Indium(III)-Promoted Friedel−Crafts Alkenylation−Cyclization of 2-Alkynylphenyl Isothiocyanates
摘要:
A new approach to the synthesis of 4-aryl- or 4-arylthioquinoline-2-thiones via indium(111) reagent-mediated tandem Friedel-Crafts alkenylationcyclization of 2-alkynylphenyl isothiocyanates is described.
A new approach to the synthesis of 4-aryl- or 4-arylthioquinoline-2-thiones via indium(111) reagent-mediated tandem Friedel-Crafts alkenylationcyclization of 2-alkynylphenyl isothiocyanates is described.
US4752638A
申请人:——
公开号:US4752638A
公开(公告)日:1988-06-21
One‐Pot Copper‐Catalyzed Cascade Bicyclization Strategy for Synthesis of 2‐(1
<i>H</i>
‐Indol‐1‐yl)‐4,5‐dihydrothiazoles and 2‐(1
<i>H</i>
‐Indol‐1‐yl)thiazol‐5‐yl Aryl Ketones with Molecular Oxygen as an Oxygen Source
作者:Jialin Xie、Zhonglin Guo、Yuanqiong Huang、Yi Qu、Hongjian Song、Haibin Song、Yuxiu Liu、Qingmin Wang
DOI:10.1002/adsc.201801193
日期:2019.2
atom‐economical method for synthesizing N‐heterocyclic indolesfrom readily available o‐alkynylphenyl isothiocyanates and propargylamine derivatives is reported. This method involves a copper‐catalyzed cascade bicyclization process consisting of an intramolecular 5‐exo‐dig hydrothiolation reaction and an intramolecular hydroamination reaction and, depending on whether or not molecular oxygen is present
A variety of 4-arylquinoline-2-thiones and 3-arylthieno[2,3-b]indoles were synthesized in high yields via TfOH-promoted tandem Friedel-Crafts alkenylation-cyclization reactions of 2-alkynylphenyl isothiocyanates. (c) 2009 Elsevier Ltd. All rights reserved.