Boron subphthalocyanine compounds and method of making
View Patent ↗A compound comprising a boron subphthalocyanine moiety, a plurality of solubilizing substituents positioned on peripheral cyclic groups of the boron subphthalocyanine moiety and an axial substituent positioned on the boron atom of the boron subphthalocyanine moiety. The plurality of solubilizing substituents comprise an oxygen or sulfur containing functional group and a substituted or unsubstituted, linear, branched or cyclic, aliphatic or aromatic terminal hydrocarbyl group that is 8 or more carbon atoms in length, the hydrocarbyl group optionally containing one or more heteroatoms. The axial substituent is selected from the group consisting of halogen, alkyloxy, haloalkyloxy, ester, carbonyl substituted alkyl, carbonyl substituted haloalkyl, alkylaryloxy, haloalkylaryloxy, alkyl sulfonyl, haloalkyl sulfonyl, alkylaryl sulfonyl and haloalkylaryl sulfonyl. The compound is not one of the following compounds: a) Phenoxytrispentadecylphenoxyboronsubphthalocyanine, b) Chlorotrispentadecylphenoxyboronsubphthalocyanine, or c) 3-Pentadecylphenoxytrispentadecylphenoxyboronsubphthalocyanine. Processes for making the compound are also taught.
1. A process for making a colorant compound, the process comprising:
reacting a phthalonitrile compound with a boron halide salt to form a boron subphthalocyanine chloride intermediate, the phthalonitrile compound including an oxygen or sulfur containing functional group substituted with a substituted or unsubstituted, linear, branched or cyclic, aliphatic or aromatic terminal hydrocarbyl group that is 8 or more carbon atoms in length, the hydrocarbyl group optionally containing one or more heteroatoms; and
reacting the boron subphthalocyanine chloride intermediate with at least one oxygen containing compound selected from the group consisting of carboxylic acids and sulfonic acids to form a colorant compound that provides a magenta color,
wherein the carboxylic acid has a formula:
R 5 COOH
wherein R 5 is a substituted or unsubstituted alkyl optionally containing one or more hetero atoms; and the sulfonic acid has a formula:
R 6 S(═O) 2 OH
wherein R 6 is a substituted or unsubstituted alkyl optionall containing one or more hetero atoms.
2. The process of claim 1 , wherein the phthalonitrile compound is selected from the group consisting of a C 10 to C 50 alkyl phenoxy substituted phthalonitrile or a C 10 to C 50 alkyl sulfone substituted phthalonitrile.
3. The process of claim 1 , wherein the boron halide salt is boron trichloride.
4. The process of claim 1 , wherein the oxygen containing compound is the carboxylic acid.
5. The process of claim 1 , wherein the oxygen containing compound is the sulfonic acid.
6. The process of claim 1 , wherein the phthalonitrile compound is made by mixing an alkylsulfide-phthalonitrile, an oxidizer and a solvent to form an alkyl sulfone substituted phthalonitrile.