HBr−H2O2: a facile protocol for regioselective synthesis of bromohydrins and α-bromoketones and oxidation of benzylic/secondary alcohols to carbonyl compounds under mild aqueous conditions / Rajendra D. Patil in Industrial & engineering chemistry research, Vol. 49 N° 17 (Septembre 1, 2010)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 49 N° 17 (Septembre 1, 2010) . - pp 8100–8105 Titre : HBr−H2O2: a facile protocol for regioselective synthesis of bromohydrins and α-bromoketones and oxidation of benzylic/secondary alcohols to carbonyl compounds under mild aqueous conditions Type de document : texte imprimé Auteurs : Rajendra D. Patil, Auteur ; Girdhar Joshi, Auteur ; Subbarayappa Adimurthy, Auteur Année de publication : 2010 Article en page(s) : pp 8100–8105 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Bromohydrins Oxidation benzylic Mild aqueous. Résumé : HBr−H2O2 is efficiently activated in water under mild conditions, allowing the bromohydroxylation of various styrenes. HBr−H2O2 is more economic and easy to handle and offers sufficiently high regioselectivity (100%) for bromohydrin synthesis. Further activation of bromohydrin with a catalytic amount of HBr (50 mol %) and H2O2 in water affords α-bromoketones in moderate to good yields in a single step. Oxidation of benzylic/secondary alcohols to the corresponding carbonyl compounds has been achieved with the HBr (10 mol %) and H2O2 efficiently in aqueous dioxane under ambient conditions. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie100492r [article] HBr−H2O2: a facile protocol for regioselective synthesis of bromohydrins and α-bromoketones and oxidation of benzylic/secondary alcohols to carbonyl compounds under mild aqueous conditions [texte imprimé] / Rajendra D. Patil, Auteur ; Girdhar Joshi, Auteur ; Subbarayappa Adimurthy, Auteur . - 2010 . - pp 8100–8105. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 17 (Septembre 1, 2010) . - pp 8100–8105 Mots-clés : Bromohydrins Oxidation benzylic Mild aqueous. Résumé : HBr−H2O2 is efficiently activated in water under mild conditions, allowing the bromohydroxylation of various styrenes. HBr−H2O2 is more economic and easy to handle and offers sufficiently high regioselectivity (100%) for bromohydrin synthesis. Further activation of bromohydrin with a catalytic amount of HBr (50 mol %) and H2O2 in water affords α-bromoketones in moderate to good yields in a single step. Oxidation of benzylic/secondary alcohols to the corresponding carbonyl compounds has been achieved with the HBr (10 mol %) and H2O2 efficiently in aqueous dioxane under ambient conditions. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie100492r

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