SU321131A1 - METHOD OF OBTAINING DERIVATIVE PHTALO1; IANIN - Google Patents

Description

This invention relates to methods for preparing phthalocyanium-type compounds that can be used as pigments for dyeing polymeric materials and other technical purposes.

A known method for producing phthalocyanine derivatives by reacting orthodicarboxylic acid derivatives of a benzene series containing tertiary alkyl groups, 4-7 /) er-butyl-phthalopitrile nanoparticles with metals or their salts in the presence of ammonium molybdate catalyst, followed by isolation of the target product by known methods . The desired product is used as a pigment for dyeing plastics in blue-green tones.

: In order to expand the color range of phthalocyanine pigments, a method of producing new phthalocyanine derivatives based on the known reaction of the reaction of aromatic orthodicarboxylic acid derivatives with metals or their salts. Due to the use of a new raw material, orthodicarboxylic acid naphthalene, containing Bi as a substituent for a tertiary alkyl group, new phthalocyanine derivatives are obtained, which can be used as pigments for dyeing polymeric materials in green tones. The method consists in the fact that the derivatives of ortho-carboxylic acids paftadine, which contain tertiary alkyl groups in the molecule, for example, 6-greg-butyl-2,3-dicyannaphthalene, are reacted with metals or their salts in the presence of a catalyst.

Example 1. A mixture of 0.78 g (3.3 mmol} 6g /; er-butnl-2, 3-dicyam-1P1-phthalip, mp 193-1U4 ° C, 0.19 g (1.2 mmol) of vanadium trichloride and the catalytic amount of ammonium molybdate is stirred for 3 hours at 220-230 ° C, cooled, crushed, treated with 10% hydrochloric acid and filtered. The precipitate is washed with water and dried, then extracted with benzene, the extract is evaporated and chromatographed on alumina, eluate with chloroform. After evaporation of the eluate, a dark green powder (Greg-butyl) naphthalocampanate is obtained on the vapadil. The yield is 0.37 g (44%).

Found,%: N 11.20, 11.04.

SbdNebMzOU.

Calculated,%: N 11,16.

Example 2. A mixture of 0.78 g (3.3 mmol) 6t /; er-butyl-2, 3 - dicyaphaphthalene, 0.12 g (1.2 mmol} of copper monochloride and a catalytic amount of ammonium molybdate in 3 ml of ethanol is heated 3 The mixture is washed with water and dried, then extracted with benzene, the extract is evaporated and the residue is chromatographed on alumina, eluting with benzene-pyridine (20: 1). After evaporation of the eluate, a dark green powder is obtained: K (t / 7e7-butyl) of naphthalocyanine copper. Yield 0.41 g (49%). Found: N: 11.61, 11.51.

Sat4H5bM8Ci.

Calculated,%: N 11.20.

Subject invention

A method of producing phthalocyanine derivatives, characterized in that naphthalene orthodicarboxylic acid derivatives containing tertiary alkyl groups in the molecule, for example 6-greg-butyl-2,3-dicyannaphthalene, are reacted with metals or their salts in the presence of ammonium molybdate catalyst followed by the selection of the product known techniques.