Amorphous Mesoporous Iron Aluminophosphate Catalyst for the Synthesis of 1,5-Benzodiazepines

doi:10.1016/S1872-2067(10)60120-9

Chinese Journal of Catalysis ›› 2010, Vol. 31 ›› Issue (11): 1321-1327.DOI: 10.1016/S1872-2067(10)60120-9

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Amorphous Mesoporous Iron Aluminophosphate Catalyst for the Synthesis of 1,5-Benzodiazepines

A. V. VIJAYASANKAR1, S. DEEPA1, B. R. VENUGOPAL2, N. NAGARAJU1,*

1Department of Chemistry, Catalysis Research Laboratory, St. Joseph’s College Research Centre, Shanthi Nagar, Bangalore 560027, India; 2Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India

Received:2010-04-06 Online:2010-11-12 Published:2014-03-28

Abstract

Abstract: A simple and versatile method for the synthesis of 1,5-benzodiazepines from o-phenylenediamine and ketones in the presence of solvents and under solvent-free conditions that used an amorphous mesoporous iron aluminophosphate as catalyst was developed. High yields with excellent selectivity were obtained with a wide variety of ketones under mild reaction conditions. The catalyst had the advantages of ease of preparation, ease of handling, simple recovery, reusability, non toxicity, and being inexpensive.

Key words: benzodiazepine, amorphous metal aluminophosphate, mesoporous iron aluminophosphate, o-phenylenediamine, ketone, solvent free synthesis

A. V. VIJAYASANKAR1, S. DEEPA1, B. R. VENUGOPAL2, N. NAGARAJU1,*. Amorphous Mesoporous Iron Aluminophosphate Catalyst for the Synthesis of 1,5-Benzodiazepines[J]. Chinese Journal of Catalysis, 2010, 31(11): 1321-1327.

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Amorphous Mesoporous Iron Aluminophosphate Catalyst for the Synthesis of 1,5-Benzodiazepines

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