Bromation régiosélective en série aromatique. I: Monobromation en position para de phénols et d'aminés aromatiques par le tribromure de tétrabutylammonium

Autor:	Daniel Masure, Catherine Guette, P.L. Desbene, Patrick Chaquin, Jacques Berthelot, Jean-Jacques Basselier
Rok vydání:	1989
Předmět:	chemistry.chemical_compound chemistry Tetrabutylammonium tribromide Organic Chemistry Organic chemistry General Chemistry Phenols Catalysis
Zdroj:	Canadian Journal of Chemistry. 67:2061-2066
ISSN:	1480-3291 0008-4042
DOI:	10.1139/v89-320
Popis:	The reaction of tetrabutylammonium tribromide (TBABr3) with phenols and aromatic amines in aprotic and non-basic solvents at 20 °C gives exclusively the corresponding para-brominated compounds in high yields. A mechanism involving electrophilic substitution by the tribromide anion Br3− itself is suggested to account for the results, especially the regioselective para bromination. Keywords: bromination, tetrabutylammonium tribromide, phenols, aromatic amines.
Databáze:	OpenAIRE
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