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Synthesis and antimicrobial activity of 2-substituted-2,3-dihydro-5-propoxy-1H-1,3,2-benzodiazaphosphole 2-Oxides

✍ Scribed by M. Venugopal; B. Sankar Reddy; C. Devendranath Reddy; K. D. Berlin

Publisher
Journal of Heterocyclic Chemistry
Year
2001
Tongue
English
Weight
117 KB
Volume
38
Category
Article
ISSN
0022-152X

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✦ Synopsis

Abstract

Several 2‐alkylcarbamato/thiocarbamato/aryloxy/trichloromethyl‐2,3‐dihydro‐5‐propoxy‐1__H__‐1,3,2‐benzodiazaphosphole 2‐oxides (4 and 6) were synthesised by reacting 4‐propoxy‐o‐phenylenediamine (1) with various N‐dichlorophosphinyl carbamates (3), aryl phosphorodichloridates (5a‐f) and trichloromethyl phosphonic dichloride (5g) in the presence of triethylamine at 45‐65 °C. Their ir, ^1^H, ^13^C, ^31^P nmr and mass spectral data are discussed. The compounds were screened for antifungal activity against Curvularia lunata and Aspergillus niger and for antibacterial activity against Bacillus subtilis and Escherichia coli. Most of these compounds exhibited moderate activity in the assays.

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