Process for the preparation of phenolic thiocarboxylic acid...

Details Process for the preparation of phenolic thiocarboxylic acid... Process for the preparation of phenolic thiocarboxylic acid...

C - Chemistry, Metallurgy

07

C

260/478.3

C07C 319/12 (2006.01) B01J 31/02 (2006.01) C07B 61/00 (2006.01) C07C 319/14 (2006.01) C07C 323/16 (2006.01) C07C 323/52 (2006.01) C07C 323/56 (2006.01)

Patent

CA 1328464

Process for the preparation of Phenolic thiocarboxylic acid esters Abstract of the Disclosure A process for the preparation of compounds of formula I (I), Image by reacting a phenol with formaldehyde and a thiol of formula HS-Cn-H2n-COO-R3 under excess pressure and in the presence of dimethylamine. R1 and R2 are each independently of each other C1-C4 alkyl, R3 is C1-C20 alkyl or C2-C20 alkyl which is interrupted by -O- or -S- and n is 1 or 2. The compounds of formula (I) are useful antioxidants.

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