Huang Jinling
2006
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Journal
Chinese Journal of Synthetic Chemistry
Abstract
Potassium 4-sulfophthalonitrile,a hydrophilic precursor of phthalocyanine,was synthesized from 4-nitrophthalonitrile via reduction,diazotization,sulfonyl chlorination,hydrolysis and neutralization with an overall yield of 22%.The structure was characterized by ~1H NMR,IR,MS and(elemental) analysis.