Tetrahedron

Reactions of cyclic anhydrides XVI: A novel approach to angular oxygenated pyrrolobenzoxazinomes

V Balasubramaniyan, NP Argade

文献索引：Balasubramaniyan, V.; Argade, N. P. Tetrahedron, 1989 , vol. 45, # 3 p. 835 - 842

全文：HTML全文

被引用次数: 20

摘要

O-Carboxymaleanilic acids IIIa-g when treated with sodium acetate-acetic anhydride underwent double cyclisation leading to pyrrolobenzoxazinones Va-g carrying an angular acetate. A one-flask reaction of dimethylmaleic anhydride and phthalic anhydride with anthranilic acid furnished the angular hydroxy benzoxazinones IVh and IVi respectively, which were converted to the corresponding acetates Vh and Vi. The acetates Va, Vc, Vf, ...