Facile Synthesis of 2,3-Disubstituted Indoles by NBS/CuCl Mediated Oxidative Cyclization of N -Aryl Enamines

2017 ◽  
Vol 2 (4) ◽  
pp. 1409-1412 ◽  
Author(s):  
Fang-Zhi Hu ◽  
Si-Han Zhao ◽  
Hui Chen ◽  
Shuo-Wen Yu ◽  
Xiao-Ying Xu ◽  
...  
Keyword(s):  
Oxidative Cyclization ◽  
Facile Synthesis

Metal–organic framework mediated expeditious synthesis of benzimidazole and benzothiazole derivatives through an oxidative cyclization pathway

2020 ◽  
Vol 44 (3) ◽  
pp. 1021-1027
Author(s):  
Velayudham Sankar ◽  
Peramaiah Karthik ◽  
Bernaurdshaw Neppolian ◽  
Bitragunta Sivakumar
Keyword(s):  
Heterogeneous Catalyst ◽  
Good Yield ◽  
Metal Organic Framework ◽  
Oxidative Cyclization ◽  
Facile Synthesis ◽  
Benzothiazole Derivatives ◽  
Metal Organic ◽  
Organic Framework

Herein, we report facile synthesis of various benzimidazoles and benzothiazoles by using the NH2-MIL-125(Ti) MOF as an efficient oxidant-free heterogeneous catalyst with good yield.

ChemInform Abstract: Facile Synthesis of Benzofurans via Copper-Catalyzed Aerobic Oxidative Cyclization of Phenols and Alkynes.

ChemInform ◽  
2013 ◽  
Vol 44 (44) ◽  
pp. no-no
Author(s):  
Wei Zeng ◽  
Wanqing Wu ◽  
Huanfeng Jiang ◽  
Liangbin Huang ◽  
Yadong Sun ◽  
...  
Keyword(s):  
Oxidative Cyclization ◽  
Facile Synthesis

Selectfluor™-catalyzed oxidative cyclization of ynamides enables facile synthesis of oxazolidine-2,4-diones

2019 ◽  
Vol 6 (21) ◽  
pp. 3644-3648 ◽  
Author(s):  
Guangke He ◽  
Yuan Li ◽  
Zilun Yu ◽  
Zhaoqiang Chen ◽  
Yongming Tang ◽  
...  
Keyword(s):  
Oxidative Cyclization ◽  
Attractive Alternative ◽  
Facile Synthesis

A Selectfluor™-catalyzed oxidative cyclization of ynamides employing DMSO as the solvent and oxidant was achieved, affording oxazolidine-2,4-diones in moderate to excellent yields with high chemo-selectivity. The method offers an attractive alternative to existing protocols.

Gold/Lewis acid catalyzed oxidative cyclization involving activation of nitriles

2020 ◽  
Vol 56 (99) ◽  
pp. 15581-15584
Author(s):  
Ali Wang ◽  
Xin Xie ◽  
Chunli Zhang ◽  
Yuanhong Liu
Keyword(s):  
Lewis Acid ◽  
Oxidative Cyclization ◽  
Facile Synthesis ◽  
Acid Catalyzed

A dual gold/Lewis acid-catalyzed oxidative cyclization of alkyne–nitriles with water or alcohol allows a facile synthesis of functionalized isoquinolin-1(2H)-ones and 1-alkoxy-isoquinolines.

Facile synthesis of 3-amino-5-aryl-1,2,4-oxadiazoles via PIDA-mediated intramolecular oxidative cyclization

RSC Advances ◽  
2016 ◽  
Vol 6 (59) ◽  
pp. 54277-54280 ◽  
Author(s):  
Kuan Lu ◽  
Liancheng Duan ◽  
Boxuan Xu ◽  
Weile Yin ◽  
Di Wu ◽  
...  
Keyword(s):  
Functional Groups ◽  
Simple Procedure ◽  
Oxidative Cyclization ◽  
Ambient Condition ◽  
Facile Synthesis ◽  
Metal Free ◽  
Intramolecular Oxidative Cyclization

Advantages: ambient condition and simple procedure. Additive and metal free method. Up to 25 examples and 79% yield. Wide functional groups tolerance.

ChemInform Abstract: Facile Synthesis of 5-Trifluoromethyl-2,4-disubstituted Oxazoles via a Copper(II)-Catalyzed and TBHP/I2-Mediated Tandem Oxidative Cyclization.

ChemInform ◽  
2012 ◽  
Vol 43 (16) ◽  
pp. no-no
Author(s):  
Song Wei ◽  
Haigang Yu ◽  
Jie Chen ◽  
Hongmei Deng ◽  
Hui Zhang ◽  
...  
Keyword(s):  
Oxidative Cyclization ◽  
Facile Synthesis

A Facile Synthesis of 2-Methylquinolines via Pd-Catalyzed Aza-Wacker Oxidative Cyclization

2008 ◽  
Vol 10 (2) ◽  
pp. 173-175 ◽  
Author(s):  
Zuhui Zhang ◽  
Jiajing Tan ◽  
Zhiyong Wang
Keyword(s):  
Oxidative Cyclization ◽  
Facile Synthesis
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