Making full use of the oxidizing equivalents in bromate in the selective oxidation of thiols, sulfides, and benzylic/secondary alcohols into disulfides, sulfoxides, and aldehydes/Kketones / Girdhar Joshi in Industrial & engineering chemistry research, Vol. 49 N° 3 (Fevrier 2010)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 49 N° 3 (Fevrier 2010) . - pp. 1236–1241 Titre : Making full use of the oxidizing equivalents in bromate in the selective oxidation of thiols, sulfides, and benzylic/secondary alcohols into disulfides, sulfoxides, and aldehydes/Kketones Type de document : texte imprimé Auteurs : Girdhar Joshi, Auteur ; Sukalyan Bhadra, Auteur ; Sudip Ghosh, Auteur ; Manoj K. Agrawal, Auteur Année de publication : 2010 Article en page(s) : pp. 1236–1241 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Making Full--Oxidizing--Equivalents--Bromate--Selective--Oxidation --Sulfides--Benzylic--Secondary--Alcohols--Disulfides--Sulfoxides, --Aldehydes--Ketones Résumé : The oxidation of thiols to disulfides was achieved in high yields with 6:1 mol ratio of thiol to NaBrO3, while the oxidation of sulfides and benzylic/secondary alcohols to the corresponding sulfoxides and aldehydes/ketones was successfully undertaken with 3:1 mol ratio of substrate to NaBrO3. These ratios correspond to the minimum theoretical requirement of NaBrO3. The reactions were conducted at 0−30 °C, depending upon substrate, and were initiated with catalytic amounts of H+ and Br− (initial Br−/BrO3− = 1:3.5 for thiol oxidation and 1:8 for sulfide and alcohol oxidation). Further, regeneration and reuse of the spent reagent in the aqueous effluent was demonstrated. Note de contenu : Bibiogra. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901426t [article] Making full use of the oxidizing equivalents in bromate in the selective oxidation of thiols, sulfides, and benzylic/secondary alcohols into disulfides, sulfoxides, and aldehydes/Kketones [texte imprimé] / Girdhar Joshi, Auteur ; Sukalyan Bhadra, Auteur ; Sudip Ghosh, Auteur ; Manoj K. Agrawal, Auteur . - 2010 . - pp. 1236–1241. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 3 (Fevrier 2010) . - pp. 1236–1241 Mots-clés : Making Full--Oxidizing--Equivalents--Bromate--Selective--Oxidation --Sulfides--Benzylic--Secondary--Alcohols--Disulfides--Sulfoxides, --Aldehydes--Ketones Résumé : The oxidation of thiols to disulfides was achieved in high yields with 6:1 mol ratio of thiol to NaBrO3, while the oxidation of sulfides and benzylic/secondary alcohols to the corresponding sulfoxides and aldehydes/ketones was successfully undertaken with 3:1 mol ratio of substrate to NaBrO3. These ratios correspond to the minimum theoretical requirement of NaBrO3. The reactions were conducted at 0−30 °C, depending upon substrate, and were initiated with catalytic amounts of H+ and Br− (initial Br−/BrO3− = 1:3.5 for thiol oxidation and 1:8 for sulfide and alcohol oxidation). Further, regeneration and reuse of the spent reagent in the aqueous effluent was demonstrated. Note de contenu : Bibiogra. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901426t

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