L. Bao
2006
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Journal
Journal of Shenyang Institute of Chemical Technology
Abstract
2,2'-(1,4-Phenylene)bis[4H-3,1-Benzoxazin-4-one](I) was respectively prepared from isatoic anhydride and anthranilic acid in two different ways.In the first way(I) was prepared from isatoic anhydride and terephthaloyl chloride in 80.2 % yield.In the second way(I) was prepared in total (71.2) % yield from reaction of anthranilic acid and terephthaloyl chloride in xylene with subsequent treatment with acetic anhydrid.The structure of(I) was identified by elementary analysis,\ ~1H NMR,IR,UV and defermination of m.p.