Influence of acid-base sites on ZnO–ZnCr 2 O 4 catalyst during dehydrocyclization of aqueous glycerol and ethylenediamine for the synthesis of 2-methylpyrazine: …

…, R Sarkari, C Anjaneyulu, V Krishna, MK Kumar…

Index: Venugopal, Akula; Sarkari, Reema; Anjaneyulu, Chatla; Krishna, Vankudoth; Kumar, Mandari Kotesh; Narender, Nama; Padmasri, Aytam Hari Applied Catalysis A: General, 2014 , vol. 469, p. 398 - 409

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Citation Number: 13

Abstract

Abstract The physicochemical characteristics of ZnO–ZnCr 2 O 4 (Zn–Cr–O) mixed oxides were determined by adsorption and spectroscopic methods. The catalytic activities of Zn–Cr– O was investigated for dehydrocyclization of ethylenediamine and aqueous glycerol to synthesize 2-methylpyrazine (2MP). Reductive pre-treatment was required for better 2MP yields and rate of 2MP was dependent upon strong basicity of Zn–Cr–O. Product ...