Keywords Thiol Disulﬁde Cation exchanged Montmorillonite Magnetic nanoparticles Oxidative dimerization Introduction The conversion of thiols to the corresponding disulﬁdes is an important reaction in chemical processes. Disulﬁdes have industrial applications as vulcanizing agents  and are important synthetic intermediates with many applications in organic synthesis [2, 3]. Disulﬁde bond formation is important in peptides  and bioactive molecules . Oxidative dimerization of thiols to disulﬁdes under neutral and mild conditions without overoxidation is an important process in organic chemistry  and biochemistry , which has been investigated over the years. Many successful reagents have been developed for the synthesis of disulﬁdes without over-oxidation of thiols to sulfoxides and sulfones . Various reagents and oxidants have been employed for the conversion of thiols to disulﬁdes. This conversion has been accomplished using reagents such as permanganates , sodium perborate , ferric chloride , sodium chlorite , hydrogen peroxide , halogens , molecular oxygen , PCC , ammonium persulfate , 2,6-dicarboxypyri- dinium chlorochromate , 1,3-dibromo-5,5-dimethylhydantoin , N-phenyl- triazolinedione , molecular bromine on hydrated silica gel support , iodine and CeCl 7H O in graphite , monochloro poly(styrenehydantoin) beads , 3 2 solid anhydrous potassium phosphate , cetyltrimethylammonium dichromate
Research on Chemical Intermediates – Springer Journals
Published: Sep 13, 2016
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