Process for the preparation of phosphonitrile chloride oligomer

Details Process for the preparation of phosphonitrile chloride oligomer Process for the preparation of phosphonitrile chloride oligomer

1986-08-13

1989-01-03

Doll, John

Chemistry of inorganic compounds

Phosphorus or compound thereof

Halogen containing

C01B 2510

Patent

active

047956216

ABSTRACT:
Phosphonitrile chloride oligomer, particularly, phosphonitrile chloride trimer, is produced in high yield while suppressing the formation of by-product phosphonitrile chloride tetramer, by reacting phosphorus pentachloride with ammonium chloride in an inert organic solvent, in the presence of a catalytic amount of a compound selected from the group consisting of quinoline, isoquinoline and their drivatives represented by the general formulae: ##STR1## wherein R stands for an alkyl group or a halogen atom and n stands for zero or an integer of 1 to 7,
and pyridine derivatives represented by the general formula: ##STR2## wherein Q stands for a halogen atom or a hydroxyl group; R' stands for an alkyl group; m stands for an integer of 1 to 5 and p stands for zero of an integer of 1 to 4 with the proviso that the total number of m and p is from 1 to 5,
and in the presence of a catalytic amount of a polyvalent metal compound.

REFERENCES:
patent: 2788286 (1957-04-01), Teja et al.
patent: 4567028 (1986-01-01), Tanino et al.
Sulkowski et al., "Synthesis of High Purity Hexachlorocyclotriphosphazene and Octachlorocyclotetraphosphazene", Chem. Stos, 26 (2), 245-252 (198 2).
"Gaisetsu Muki Kobunshi" (Outline for Inorganic Polymer), pp. 69-71, Dr. Meisetsu Kajiwara, published by Chijin Shokan Apr. 10, 1978.

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