Preparation of 2-(2H-Benzotriazol-2-yl)phenols by the Reduction of 2-[(2-Nitrophenyl)azo]phenols with ThioureaS,S-Dioxide
- 1 January 1986
- journal article
- research article
- Published by Georg Thieme Verlag KG in Synthesis
- Vol. 1986 (08) , 647-649
- https://doi.org/10.1055/s-1986-31733
Abstract
The reduction of 2-[(2-nitrophenyl)azo]phenols 1 with thiourea S,S-dioxide and sodium hydroxide in a mixture of isopropyl alcohol and water at reflux provide, 2-(2H-benzotriazol-2-yl)phenols 3 in excellent yields.Keywords
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