3530-35-6Relevant articles and documents
A very useful and mild method for the deoxygenation of sulfoxide to sulfide with silica bromide as heterogeneous promoter
Mohanazadeh, Farajollah,Veisi, Hojat,Sedrpoushan, Alireza,Zolfigol, Mohammad Ali,Golmohammad, Fereshteh,Hemmati, Saba,Hashemi, Majid
, p. 7 - 13 (2014/01/06)
Silica bromide (SB) as heterogeneous reagent and promoter is prepared from reaction of silica gel with PBr3 as a non-hydroscopic, filterable, cheap, and stable yellowish powder that can be stored for months. The results show that the SB is suitable and efficient reagent for deoxygenation of sulfoxides to the corresponding sulfides under mild conditions at room temperature. The easy availability of this reagent makes this simple procedure attractive and a practical alternative to the existing methods.
Synthesis and antioxidancy of some n-Alkyl, t-Alkyl, homologous and isomeric lipidic alkylthiobisphenols
Tyman, John H. P.,Johnson, Robert A.
, p. 573 - 578 (2008/09/21)
To study the relationship between structure and properties of members of the lipidic thiobis phenol series, as extreme pressure additives in lubricants, a series of homologous compounds has been synthesised by the reaction of alkylphenols with sulphur dichloride. The isomeric n-nonylphenols have been reacted to form the C9 isomeric 2,2′-and 4,4′-thiobisphenols. Longer alkyl side-chains resulted mainly in the formation of 4,4′-thiobisphenols and some of the 2,2′ isomer. With short alkyl, particularly t-alkyl side-chains, steric hindrance resulted in the 2,2′-compound. Additive studies have indicated that the longer chain 4,4′ compounds possessed antioxidant properties comparable and superior to former commercial branched chain 2,2′ compounds produced from petrochemical intermediates. AOCS 2007.
