A novel way of preparing meso-substituted ethynylporphyrins and their derivatives by using 1,2,3-thiadiazole as a protecting group

Article abstract of DOI:10.1016/S0040-4039(98)02247-3

Meso-(1,2,3-thiadiazol-4-yl) porphyrins are smoothly transformed to the corresponding ethynyl derivatives using potassium tert-butoxide as base. Some metal-catalyzed coupling reactions of these acetylenes are described.