Synthesis of Mono- and Disubstituted Tetra(tert-butyl)porphyrazines

Article abstract of DOI:10.1007/BF01171160

Bromination of tetra(tert-butyl)porphyrazine by N-bromosuccinimide in chloroform results in the formation of mono- and dibromides, substitution for the bromine atoms of which produced the corresponding cyano, phenoxy, phenylthio, styryl, phenylethynyl and piperidino derivatives.From the monobromide and 2,2-bis(p-hydroxyphenyl)propane, and dimeric porphyrazine 2,2-bispropane was similarly obtained.