Phenol-acetals

Details Phenol-acetals Phenol-acetals

C - Chemistry, Metallurgy

07

D

6/1, 260/619, 40

C07D 317/20 (2006.01) C07D 339/06 (2006.01) C08K 5/00 (2006.01) D06M 13/00 (2006.01)

Patent

CA 1052799

Compounds of the general formula I Image (I) in which R1 and R5 independently of one another denote hydrogen or lower alkyl, one of R2 and R3 denotes hydroxyl and the other denotes alkyl, cyclo- alkyl or arslkyl, R4 denotes hydrogen or, if R3 denotes hydroxyl, additional- ly also denotes alkyl, cycloalkyl or aralkyl, X denotes a group Image wherein R8 is lower alkyl and R9 is lower alkyl, Y1 and Y2 independently of one another denote oxygen or sulpbur, p denotes 1 or 2, q denotes 0 or 1, with the proviso that p + q = 2, and R6, if q is 0, denotes alkyl, hydroxycarbonyl- alkyl, alkoxycarbonylalkyl, or R6, if q is 0, and Y1 denotes sulphur, can also denote aryl, or R6, if q is 1, denotes, together with R7, 1,2-alkylene are used to stabilise organic material.

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