Synthesis of bis(phthalocyanylalumino)tetraphenyldisiloxanes

Details Synthesis of bis(phthalocyanylalumino)tetraphenyldisiloxanes Synthesis of bis(phthalocyanylalumino)tetraphenyldisiloxanes

1997-02-21

1998-10-06

Shah, Mukund J.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

540122, 540128, 540139, 540140, C07D48722, C09B 4704

Patent

active

058178058

ABSTRACT:
A cyan pigment, bis(phthalocyanylalumino)tetraphenyldisiloxane is prepared in a single reaction mixture. A phthalonitrile is reacted at high temperature with an aluminum salt in the presence of an ammonia donor such as urea, in an inert, high boiling organic solvent. The resulting reaction product is cooled and without isolation, refluxed in an aqueous solution of a pyridine compound containing dichlorodiphenylsilane. The desired cyan pigment is then isolated.

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patent: 2673854 (1954-03-01), Brouillard
patent: 4311775 (1982-01-01), Regan
patent: 5456998 (1995-10-01), Burt et al.
J. Chem. Soc. 1936, pp. 1719-1736. Phthalocyanines. Part VII. by P.A. Barrett et al.
J. Chem. 63, p. 623, 1985. Metallophthalocyanine Dimers Incorporating Five-Aton Covalent Bridges by Leznoff et al.
Inorganic Chemistry, 1(2), pp. 334-336, 1962. Aluminum and Silicon Hydroxy and Oxy Systems of the Phthalocyanino Type by Owen et al.

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