Process for the preparation of hydroxyphenylcarboxylates

Details Process for the preparation of hydroxyphenylcarboxylates Process for the preparation of hydroxyphenylcarboxylates

C - Chemistry, Metallurgy

07

C

C07C 69/732 (2006.01) C07C 67/02 (2006.01) C07C 67/08 (2006.01) C07C 69/88 (2006.01)

Patent

CA 2144273

There is disclosed a process for the preparation of compounds of formula I Image (I) wherein R1 and R2 are each independently of the other C1-C8alkyl or cyclopentyl or cyclohexyl, m is 0,1,2 or 3, n is 1 or 2, and R3, depending on the value of n, is C4-C20alkyl, C5-C12cycloalkyl, C2-C4alkylene, or C4-C12alkylene which is interrupted by oxygen, by reaction of a compound of formula II Image (II) wherein R is methyl or ethyl, with a compound of formula III R3(OH)n (III) which reaction is carried out in the presence of magnesium acetate as catalyst.

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