Process for producing phenolic thiocarboxylic esters

Details Process for producing phenolic thiocarboxylic esters Process for producing phenolic thiocarboxylic esters

C - Chemistry, Metallurgy

10

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260/478.3

C10M 135/26 (2006.01) C07C 319/00 (2006.01) C07C 323/52 (2006.01) C09K 15/14 (2006.01) B01J 31/02 (2006.01)

Patent

CA 1239147

Case 3-15013/- Process for producing phenolic thiocarboxylic esters Abstract Compounds of the formula I Image (I) wherein R1 and R2 independently of one another are each tert-butyl, R3 is C1-C20-alkyl, or C2-C20-alkyl interrupted by -O- or -S-, and n is the number 1 or 2, can be obtained, with a very high degree of yield and purity, by reaction of a phenol of the formula II Image (II) with formaldehyde and a mercaptan of the formula III R3OC-CnH2n-SH (III) in the presence of catalytic amounts of a primary or secondary amine. Such compounds are stabilisers for organic materials,

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