High yield method for preparation of dialkyl esters of polyhaloa

Details High yield method for preparation of dialkyl esters of polyhaloa High yield method for preparation of dialkyl esters of polyhaloa

1991-08-19

1993-05-04

Dees, Jose G.

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

Organic compounds

Carboxylic acid esters

560 99, 560103, 560106, 560112, 562480, 562493, C07C 6708

Patent

active

052083667

ABSTRACT:
An improved process is provided for the preparation of esters of polyhalophthalic acids, polyhalobenzoic acids, and polyhalophthalic anhydride useful as flame retardants for thermoplastic and thermosetting resins, which comprises the reaction of the above acids or anhydride with alcohols in the presence of certain metal and metallorganic compounds as catalysts. Also provided are certain esters per se.

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