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Bromination of deactivated aromatic compounds with sodium bromide / sodium periodate under mild acidic conditions / Lalit Kumar in Industrial & engineering chemistry research, Vol. 51 N° 36 (Septembre 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 36 (Septembre 2012) . - pp. 11593-11597 Titre : Bromination of deactivated aromatic compounds with sodium bromide / sodium periodate under mild acidic conditions Type de document : texte imprimé Auteurs : Lalit Kumar, Auteur ; Tanu Mahajan, Auteur ; D. D. Agarwal, Auteur Année de publication : 2012 Article en page(s) : pp. 11593-11597 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Bromination Résumé : A new, simple, and practical aromatic bromination process is disclosed wherein NaBr/NaIO4 combination in acidic medium was efficiently utilized for the first time in the bromination of deactivated aromatic compounds, thus, affording the corresponding bromo-derivatives of deactivated aromatics in good yields and purity. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26350323 [article] Bromination of deactivated aromatic compounds with sodium bromide / sodium periodate under mild acidic conditions [texte imprimé] / Lalit Kumar, Auteur ; Tanu Mahajan, Auteur ; D. D. Agarwal, Auteur . - 2012 . - pp. 11593-11597. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 36 (Septembre 2012) . - pp. 11593-11597 Mots-clés : Bromination Résumé : A new, simple, and practical aromatic bromination process is disclosed wherein NaBr/NaIO4 combination in acidic medium was efficiently utilized for the first time in the bromination of deactivated aromatic compounds, thus, affording the corresponding bromo-derivatives of deactivated aromatics in good yields and purity. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26350323

Efficient and facile chlorination of industrially - important aromatic compounds using NaCl / p - TsOH/NCS in aqueous media / Tanu Mahajan in Industrial & engineering chemistry research, Vol. 51 N° 10 (Mars 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 10 (Mars 2012) . - pp. 3881–3886 Titre : Efficient and facile chlorination of industrially - important aromatic compounds using NaCl / p - TsOH/NCS in aqueous media Type de document : texte imprimé Auteurs : Tanu Mahajan, Auteur ; Lalit Kumar, Auteur ; K. Dwivedi, Auteur Année de publication : 2012 Article en page(s) : pp. 3881–3886 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Chlorination  industrial  Aqueous  media Résumé : A simple and efficient process for the chlorination of industrially important aromatic compounds using NaCl/p-TsOH/NCS in aqueous media under mild conditions is described. The addition of NaCl increases the yield of chlorinated product and decreases the reaction time in the presence of p-toluenesulphonic acid (p-TsOH) and N-chlorosuccinimide (NCS). The present method furnishes higher selectivities and yields of chlorinated products under mild reaction conditions in a short reaction time. Organic solvent-free conditions, a feature of green chemistry, was successively used not only for the reactions but also for the isolation of products at the end of the reaction, which seems to be the most promising methodology from the viewpoint of a green approach to organic synthesis. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie201971j [article] Efficient and facile chlorination of industrially - important aromatic compounds using NaCl / p - TsOH/NCS in aqueous media [texte imprimé] / Tanu Mahajan, Auteur ; Lalit Kumar, Auteur ; K. Dwivedi, Auteur . - 2012 . - pp. 3881–3886. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 10 (Mars 2012) . - pp. 3881–3886 Mots-clés : Chlorination  industrial  Aqueous  media Résumé : A simple and efficient process for the chlorination of industrially important aromatic compounds using NaCl/p-TsOH/NCS in aqueous media under mild conditions is described. The addition of NaCl increases the yield of chlorinated product and decreases the reaction time in the presence of p-toluenesulphonic acid (p-TsOH) and N-chlorosuccinimide (NCS). The present method furnishes higher selectivities and yields of chlorinated products under mild reaction conditions in a short reaction time. Organic solvent-free conditions, a feature of green chemistry, was successively used not only for the reactions but also for the isolation of products at the end of the reaction, which seems to be the most promising methodology from the viewpoint of a green approach to organic synthesis. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie201971j