Process for making allylic esters of tetrachlorophthalic acid

Details Process for making allylic esters of tetrachlorophthalic acid Process for making allylic esters of tetrachlorophthalic acid

1981-09-18

1983-04-26

Trousof, Natalie

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

Organic compounds

Carboxylic acid esters

560 96, 560 98, C07C 6700, C07C 6708

Patent

active

043814069

ABSTRACT:
Allylic esters of tetrachlorophthalic acid are formed using allylic alcohol both as a reactant and a solvent. In the first step, the alcohol and a base are reacted with tetrachlorophthalic anhydride to form the half-ester sodium salt. In the second step, the sodium salt is reacted with allylic halide to form the diester which crystallizes from solution. The excess solvent may be treated to recover the raw materials or recycled.

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