Alum-Catalyzed One-Pot Solventless Synthesis of 1,5-Benzodiazepines
Deepali Mahajan A , Tahira Naqvi A , Rattan Lal Sharma A and Kamal K. Kapoor A BA Department of Chemistry, University of Jammu, Jammu-180006, India.
B Corresponding author. Email: k2kapoor@yahoo.com
Australian Journal of Chemistry 61(2) 159-162 https://doi.org/10.1071/CH07316
Submitted: 8 September 2007 Accepted: 9 January 2008 Published: 11 February 2008
Abstract
Alum [KAl(SO4)2∙12H2O] was found to be an efficient, non-toxic, cheap, and environmentally benign catalyst for the synthesis of 1,5-benzodiazepines, in good to excellent yields, from the condensation of 1 mole of o-phenylenediamine with 2 moles of ketone under solvent-free conditions.
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