Process for preparing a metal-free phthalocyanine

Details Process for preparing a metal-free phthalocyanine Process for preparing a metal-free phthalocyanine

1996-06-21

1998-10-20

Ford, John M.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

540122, 540143, C09B 6750

Patent

active

058248005

ABSTRACT:
Phthalonitrile, an alkali metal or an alkali metal compound, and a hydrogen donor compound are heated in an organic solvent to synthesize a partially hydrogenated alkali metal phthalocyanine, which is then brought into contact with a dealkalizing agent to effect substitution with hydrogen of the partially hydrogenated alkali metal phthalocyanine to thereby obtain high-purity metal-free phthalocyanine. FX-type metal-free phthalocyanine as obtained according to the foregoing procedure may be used as a charge-generating substance to produce an electrophotographic photoconductor of high image quality which is highly sensitive to near infrared rays.

REFERENCES:
patent: 2297691 (1942-10-01), Carlson
patent: 3180703 (1965-04-01), Ableson et al.
patent: 3180729 (1965-04-01), Klupfel et al.
patent: 3240597 (1966-03-01), Fox
patent: 3357989 (1967-12-01), Byrne
patent: 3492309 (1970-01-01), Ossanna
patent: 3542544 (1970-11-01), Seus et al.
patent: 3542546 (1970-11-01), Fox
patent: 3567450 (1971-03-01), Brantly et al.
patent: 3615402 (1971-10-01), Rule
patent: 3658520 (1972-04-01), Brantly et al.
patent: 3820989 (1974-06-01), Rule et al.
patent: 4012376 (1977-03-01), Wright
patent: 4098795 (1978-07-01), Griffiths et al.
patent: 4150987 (1979-04-01), Anderson et al.
patent: 4175961 (1979-11-01), Wright et al.
patent: 4197242 (1980-04-01), Gunther
patent: 4232103 (1980-11-01), Limburg et al.
patent: 4278747 (1981-07-01), Murayama et al.
J. Am. Chem. Soc. 1981, vol. 103, pp. 4629-4630, "Planar, Pleated, and Saddle-Shaped Structures of the Phthalocyanine Dianion in Two Novel Multidentate Oxygen-Donor Complexes of Dipotassium Phthalocyanine", R. F. Ziolo et al.
Inorganic Chemstry, vol. 20, No. 8, 1981, pp. 2709-2711, "New Alkali Metal Phthalocyanine Complexes. Structure of the Quasi-Multimacrocycle K.sub.2 Pc (DMF).sub.4 and the K.sub.2 Pc Template", Ronald F. Ziolo et al.

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