Preparation of 2-aryl-2H-benzotriazoles by zinc-mediated reductive cyclization of o-nitrophenylazophenols in aqueous media without the use of organic solvents

Guo Bin Liu; Hong Yun Zhao; Hong Jie Yang; Xiang Gao; Miao Kui Li; Thies Thiemann

doi:10.1002/adsc.200700018

Preparation of 2-aryl-2H-benzotriazoles by zinc-mediated reductive cyclization of o-nitrophenylazophenols in aqueous media without the use of organic solvents

Guo Bin Liu, Hong Yun Zhao, Hong Jie Yang, Xiang Gao, Miao Kui Li, Thies Thiemann

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

Zinc powder-mediated reductive cyclization of o-nitrophenylazophenols in alkaline solution affords the corresponding 2-aryl-2H-benzotriazoles in high yields under mild reaction conditions. No organic solvents are used in the reaction and only minimal amounts in the work-up.

Original language	English
Pages (from-to)	1637-1640
Number of pages	4
Journal	Advanced Synthesis and Catalysis
Volume	349
Issue number	10
DOIs	https://doi.org/10.1002/adsc.200700018
Publication status	Published - Jul 2007
Externally published	Yes

Keywords

2-aryl-2H-benzotriazoles
O-nitrophenylazophenols
Reaction in water
Reductive cyclization
Zinc powder

ASJC Scopus subject areas

Catalysis
Organic Chemistry

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10.1002/adsc.200700018

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abstract = "Zinc powder-mediated reductive cyclization of o-nitrophenylazophenols in alkaline solution affords the corresponding 2-aryl-2H-benzotriazoles in high yields under mild reaction conditions. No organic solvents are used in the reaction and only minimal amounts in the work-up.",

keywords = "2-aryl-2H-benzotriazoles, O-nitrophenylazophenols, Reaction in water, Reductive cyclization, Zinc powder",

author = "Liu, {Guo Bin} and Zhao, {Hong Yun} and Yang, {Hong Jie} and Xiang Gao and Li, {Miao Kui} and Thies Thiemann",

year = "2007",

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doi = "10.1002/adsc.200700018",

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AU - Liu, Guo Bin

AU - Zhao, Hong Yun

AU - Yang, Hong Jie

AU - Gao, Xiang

AU - Li, Miao Kui

AU - Thiemann, Thies

PY - 2007/7

Y1 - 2007/7

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AB - Zinc powder-mediated reductive cyclization of o-nitrophenylazophenols in alkaline solution affords the corresponding 2-aryl-2H-benzotriazoles in high yields under mild reaction conditions. No organic solvents are used in the reaction and only minimal amounts in the work-up.

KW - 2-aryl-2H-benzotriazoles

KW - O-nitrophenylazophenols

KW - Reaction in water

KW - Reductive cyclization

KW - Zinc powder

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Preparation of 2-aryl-2H-benzotriazoles by zinc-mediated reductive cyclization of o-nitrophenylazophenols in aqueous media without the use of organic solvents

Abstract

Keywords

ASJC Scopus subject areas

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