反应详情

In the same manner but replacing N-(2-hydroxyphenyl)-pyrrole with an equivalent amount of N-(5-chloro-2-hydroxyphenyl)-pyrrole, 8-chloro-4-methyl-4H-pyrrolo[2,1-c][1,4]benzoxazine-4-carboxylic acid, m.p. 153° - 154° C (dec), νmaxCHCl3 1,725, 1,510, 1,330cm-1, is obtained via the intermediate ester, 8-chloro-4-methyl-4H-pyrrolo-[2,1-c][1,4]benzoxazine-4-carboxylic acid ethyl ester, νmaxCHCl3 1,735 cm-1.