Construction of 2-(2′-Hydroxy-5′-methylphenyl) benzotriazole over Pd/γ-Al2O3 by a Continuous Process

B Wang, W Fang, L Si, Y Li, X Yan…

Index: Kim, Byeong Hyo; Lee, Doo Byung; Kim, Dae Ho; Han, Rongbi; Jun, Young Moo; Baik, Woonphil Heterocycles, 2000 , vol. 53, # 4 p. 841 - 850

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Abstract

... Volume: Page ... 2-nitro-2′-hydroxy-5′-methylazobenzene (NAB) in the presence of zinc dust/sodium hydroxide,(4-6) alkali ... However, except for BTA, the construction of benzotriazole heterocycle by hydrogenation always yields o-phenylenediamine and 2-amino ...

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