Process for making monohydroxy-terminated phosphate compositions

Details Process for making monohydroxy-terminated phosphate compositions Process for making monohydroxy-terminated phosphate compositions

1996-10-31

1998-03-17

Ambrose, Michael G.

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

Organic compounds

Phosphorus esters

C07F 909

Patent

active

057288593

ABSTRACT:
The present invention is a process for forming monohydroxy-terminated aromatic oligomeric phosphates by the reaction of a diaryl halophosphate, such as diphenyl chlorophosphate, optionally in the presence of some monoaryl dihalophosphate, with an aromatic diol, such as resorcinol, to form the monohydroxy-terminated aromatic oligomeric phosphate. The reaction preferably employs a Lewis acid catalyst, such as magnesium dichloride.

REFERENCES:
patent: 3254973 (1966-06-01), Giammaria et al.
patent: 4133846 (1979-01-01), Albright
patent: 4510101 (1985-04-01), Pawloski et al.
patent: 5278212 (1994-01-01), Nishihara et al.
patent: 5508462 (1996-04-01), Bright et al.
Chemical Abstracts, vol. 120, 9796t (1994).
Chemical Abstracts, vol. 121, 135620q (1994).

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