3-BROMO-4-CARBOXY-5-SULFOPHTHALIC ACID DIPOTASSIUM SALT AS INTERMEDIATE PRODUCT FOR SYNTHESIS OF SUBSTITUTED COBALT PHTHALOCYANINE Russian patent published in 2004 - IPC

Abstract RU 2233265 C1

FIELD: organometallic chemistry.

SUBSTANCE: invention relates to a novel derivative of phthalic acid that can be used as an intermediate substance in synthesis of new substituted metallophthalocyanines representing interest as dyes and catalysts. Invention describes 3-bromo-4-carboxy-5-sulfophthalic acid dipotassium salt. Invention provides the possibility for synthesis of water-soluble halogen-substituted phthalocyanines able to dissolve in broader range of pH values and eliciting also the ability to stain cotton fibers and cloth made of them.

EFFECT: valuable properties of compound.

3 dwg, 2 ex

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RU 2 233 265 C1

Authors

Lutsenko O.G.

Kulinich V.P.

Shaposhnikov G.P.

Dates

2004-07-27—Published

2003-01-14—Filed