111180-38-2Relevant academic research and scientific papers
The syntheses of mono- and disubstituted phthalocyanines using a dithioimide
Leznoff, Clifford C.,Greenberg, Shafrira,Khouw, Ben,Lever, A. B. P.
, p. 1705 - 1713 (2007/10/02)
Hydrolysis of 5-neopentoxy-1,3-diiminoisoindoline gave 5-neopentoxy-1H-isoindole-1,3(2H)-dione(4-neopentoxyphthalimide), which, on treatment with Lawesson's reagent, yielded the thiophthalimides, 5-neopentoxy-1H-isoindole-1,3(2H)-dithione, 2,3-dihydro-6-neopentoxy-3-thioxo-1H-isoindol-1-one,and 2,3-dihydro-5-neopentoxy-3-thioxo-1H-isoindol-1-one.Attempted S-alkylations of the thiophthalimides resulted in the formation of β-isoindigos and N-alkylation products.In a new phthalocyanine synthesis crossed condensations of 1,3-diiminoisoindoline with 5-neopentoxy-1H-isoindole-1,3(2H)-dithione yielded mixtures of phthalocyanines from which 2-neopentoxyphthalocyanine and 2,16-dineopentoxyphthalocyanine could be purified in part from other phthalocyanines.
