反应详情

Japanese Patent Application 86/290399 as abstracted in Chem. Abstracts (CA109 (19) 170038e), discloses that 3,5,6-trifluoro-4-hydroxyphthalic acid may be decarboxylated by heating the compound for three hours, in water, under nitrogen atmosphere, at 140° C. (in a sealed tube) to yield 2,4,5-trifluoro-3-hydroxybenzoic acid.

1. temperatureby heating the compound for three hours