Sulfur-containing esters of substituted hydroxyphenyl alkanoic acids

Abstract

Abstract Compounds are prepared having one of the following formulae: i A. HOR1CH2S(CH2)nCOOR4 c. HOR1CmH2m-1(S(CH2)nCOOR3)2 d. (HOR1CH2)2C(COOR2)2 e. HOR1CH2O(CH2)nCOOR2 f. HOR1CH2OCH2CH2OOCCH2CH2S(CH2)nCOOR3 g. HOR1CH2CH(COOR2)2 where R5 and R6 are hydrogen, alkyl, cycloaklyl, aryl or aralkyl, the total carbon atoms in R5 and R6 is between four and 36 carbon atoms, is preferably not over 12 carbon atoms and R6 is preferably in the ortho position, R2 is R3 is hydrocarbyl, preferably alkyl or alkenyl, e.g., of one to 18 carbon atoms, n is 1 or 2, R14 is H or COOR2, m is 1, 2, 3 or 4, y is 0 or 1, and R4 is either R2 or R3 and R15 is hydrogen or lower alkyl. The above compounds are useful as antioxidants.

Inventors

• 👤 A Koeniger
• 👤 R Bresser
• 👤 I Hechenbleikner
• 👤 J Hussar

Bibliographic Details