Health & Environmental Research Online (HERO)


Print Feedback Export to File
7686424 
Journal Article 
Synthesis of dibenzo[b,f][1,4]oxazepin-11(10H)-ones from 2-nitrobenzoic acids 
Samet, AV; Kislyi, KA; Marshalkin, VN; Semenov, VV; , 
2006 
1 
Russian Chemical Bulletin
ISSN: 1066-5285
EISSN: 1573-9171 
CONSULTANTS BUREAU/SPRINGER 
NEW YORK 
549-553 
WOS:000239714700021 
Base-catalyzed intramolecular nucleophilic substitution for the 2-nitro group in 2-hydroxyanilides of 2-nitrobenzoic acids gave dibenzo[b,f][1,4]oxazepin-11(10H)-ones. In particular, 3 -nitrodibenzo[b,f][1,4] oxazepin-11 (10H)-one was obtained from N-(2-hydroxyphenyl)2,4-dinitrobenzamide. The nitro group in the product could also be replaced under the action of O- and S-nucleophiles.