反应详情

Clauson-Kaas and Tyle [Acta Chem. Scand. 6, 667 (1952)] described the methoxylation of 2(acetamidomethyl)-furan (Formula II) to 2,5-dimethoxy-2(acetamidomethyl)-2,5-dihydrofuran (Formula III). This compound was hydrogenated with catalyst to give 2,5-dimethoxy-2(acetamidomethyl)-tetrahydrofuran (Formula IV), which with aniline in acetic acid medium gave 1-phenyl-2-(acetamidomethyl)-pyrrole (Formula V), with a mean yield of 81% according to the following scheme: ##STR4##