期刊
APPLIED CATALYSIS A-GENERAL
卷 296, 期 2, 页码 209-215出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apcata.2005.08.024
关键词
palladium; benzonitrile; benzylamine; selective hydrogenation; primary amine
A method for selective liquid-phase heterogeneous catalytic hydrogenation of nitriles to primary amines has been developed. Benzonitrile (BN) was hydrogenated to benzylamine (BA) under mild reaction conditions (30 degrees C, 6 bar), over supported palladium catalysts, in a mixture of two immiscible solvents (e.g. water/dichloromethane) and in the presence of sodium dihydrogen phosphate (NaH2PO4)- Complete conversion, very high selectivity (95% to BA) and isolated yield (85-90%) could be achieved by using this process. Very pure product (> 99% BA-content) was prepared without applying any special purification procedures. (c) 2005 Elsevier B.V. All rights reserved.
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