Photosensitizer
AssigneeTampereen KorkeakoulusääTiö Sr
InventorsAlexander EFIMOV, George LIJO, Ville SANTALA
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Abstract
The present application relates to a phthalocyanine, to a method for preparing the phthalocyanine, and to an object coated or impregnated with the phthalocyanine. The present application also relates to a method for providing reactive oxygen species, and to a method for disinfecting materials, including providing reactive oxygen species to the material to disinfect the material by oxidative action.
Claims21
1-13. (canceled)
A phthalocyanine of Formula I:
- wherein M is a metal ion or two hydrogen atoms,
- and wherein the substituent pairs R1 and R2, R3 and R4, R5 and R6, and R7 and R8, independently of the other substituent pairs, are
- a hydrogen, and
- the other substituent is the same in all the substituent pairs and is selected from
- wherein R9 is a C1-C18 alkyl.
3-(Pyridin-4-yl)benzene-1,2-dicarbonitrile.
A method for preparing 3-(pyridin-4-yl)benzene-1,2-dicarbonitrile, the method comprising
- providing a mixture of pyridine boronate ester, triflate phthalonitrile, palladium catalyst, and K3PO4 in solution, heating and stirring, such as at a temperature in the range of 90-100° C. for about 1-3 h, and
- recovering the 3-(pyridin-4-yl)benzene-1,2-dicarbonitrile from the solution.
A method for preparing a tetrakis[α-pyridyl] phthalocyanine of Formula II,
- the method comprising
- providing lithium dissolved in a solvent, preferably at a temperature in the range of 90-100° C. under argon atmosphere,
- cooling the mixture to room temperature,
- adding 3-(pyridin-4-yl)benzene-1,2-dicarbonitrile, preferably under argon atmosphere
- reacting at heating, such as at a temperature of about 90-100° C., preferably in mixing, and
- recovering the obtained tetrakis[α-pyridyl] phthalocyanine of Formula II.
A method for preparing a tetrakis[α-pyridyl] zinc phthalocyanine of Formula III,
- the method comprising
- providing 3-(pyridin-4-yl)benzene-1,2-dicarbonitrile
- heating the 3-(pyridin-4-yl)benzene-1,2-dicarbonitrile and zinc acetate in dimethylaminoethanol at reflux, such as at a temperature in the range of 120-150° C. for about 6-24 h,
- cooling the mixture, and
- recovering the obtained tetrakis[α-pyridyl] zinc phthalocyanine of Formula III.
Dependencies are inferred from the claim text.