SYNTHESIS OF 4-AZAFLUORENE DERIVATIVES BASED ON 9-(3,6-DIPHENYLPYRIDAZIN-4-YL)-4-AZAFLUORENE

Article abstract of DOI:10.1007/BF00532029

The reaction of 9-(3,6-diphenylpyridazin-4-yl)-4-azafluorene with n-butyl acrylate under conditions of the Michael reaction affords the product of the condensation at the methine group.When sterically hindered esters of methacrylic, crotonic, and cynnamic