(hydrocarbylthio) phenols and their preparation

Details (hydrocarbylthio) phenols and their preparation (hydrocarbylthio) phenols and their preparation

C - Chemistry, Metallurgy

10

M

31/75, 260/620.1

C10M 135/30 (2006.01) C09K 15/14 (2006.01)

Patent

CA 1253521

(HYDROCARBYLTHIO)PHENOLS AND THEIR PREPARATION Abstract (Hydrocarbylthio)phenols containing at least two hydrocarbylthio groups or hydrocarbylthio groups in either or both of the meta positions, relative to the hydroxy group, on a phenolic ring are prepared by reacting phenolic compounds with an excess of hydro- carbyl disulfide in the presence of catalytic amounts of an aluminum phenoxide. Novel and useful (hydrocarbyl- thio)phenols containing at least two hydrocarbylthio groups or hydrocarbylthio groups in either of both of the meta positions, relative to the hydroxy group, on a phenolic ring can be prepared by this process. (Hydro- carbylthio)phenols containing at least two hydrocarbyl- thio groups or hydrocarbylthio groups in either of both of the meta positions, relative to the hydroxy group, on a phenolic ring are effective antioxidants for organic material normally susceptible to oxidative deterioration, such as mineral oil.

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