Silica gel / NaHSO4: An efficient and re
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M. Adharvana Chari; D. Shobha; K. Syamasundar
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Article
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2007
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Journal of Heterocyclic Chemistry
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English
β 228 KB
## Abstract magnified image Silica gel supported sodium hydrogen sulfate catalyzes efficiently the condensation of __o__βphenylenediamines with ketones under microwaves in solvent free conditions to afford the corresponding 1,5βbenzodiazepine derivatives in high yields. Compared to conventional re