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IJC-B Vol.51B(11) [November 2012] >

Title: A facile synthesis of 3,5,7-trisubstituted-4H-[1,2]diazepines by microwave irradiation
Authors: Manih, Rudolf Manton
Myrboh, Bekington
Keywords: 3,5,7-Trisubstituted-4H–[1,2]diazepines
α,β-unsaturated 1,5-diketone
P-toluene sulfonic acid (PTSA)
Polystyrene sulphonic acid (PSSA)
Issue Date: Nov-2012
Publisher: NISCAIR-CSIR, India
Abstract: A novel approach for the synthesis of 3,5,7-trisubstituted-4H-[1,2]diazepine 5a-p from α,β-unsaturated 1,5-diketone 4 by the condensation of substituted acetophenones 1 with 1,3-dicarbonyl compound 3 in the presence of sodium tertiary butoxide has been described. The intermediate 4 reacts smoothly with hydrazine hydrate catalysed by PSSA in water under microwave irradiation to yield the product 5.
Page(s): 1613-1618
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-0983(Online); 0376-4699(Print)
Source:IJC-B Vol.51B(11) [November 2012]

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