Abstract
4-Amino-5-(3, 5-dimethoxyphenyl) pyrimidine (II) and 4-amino-5-(3-methoxyphenyl)-pyrimidine (VI) were acetylated to 4-acetamido-5-(3, 5-dimethoxyphenyl) pyrimidine (III) and 4-acetamido-5-(3-methoxyphenyl) pyrimidine (VII). III and VII gave respectively gave 6, 8-dimethoxy-9-methyl-1, 3, 10-triazaphenanthrene (IV)+(II) and 6-methoxy-9-methyl-1, 3, 10-triazaphenanthrene (VIII)+(VI) by the Bischler-Napieralski cyclization with polyphosphoric acid. This is a novel synthetic method for 1, 3, 10-triazaphenanthrene derivarives.
