“…The polymeric platinum-phthalocyanine is obtained by the reaction of pyromellitonitrile, PtCl 2 , and urea and is used as the catalyst in the formation of indole from N-ethylaniline. 179 Tetrafluorinated 180 or tetrasulfonated 181 phthalocyanines have been obtained by the reaction of the corresponding anhydrides or ammonium salts with urea in the presence of suitable metal salts.…”
Section: Methods Of Synthesis Of Phthalocyanines Diazepines and Diazo...mentioning
“…The polymeric platinum-phthalocyanine is obtained by the reaction of pyromellitonitrile, PtCl 2 , and urea and is used as the catalyst in the formation of indole from N-ethylaniline. 179 Tetrafluorinated 180 or tetrasulfonated 181 phthalocyanines have been obtained by the reaction of the corresponding anhydrides or ammonium salts with urea in the presence of suitable metal salts.…”
Section: Methods Of Synthesis Of Phthalocyanines Diazepines and Diazo...mentioning
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