N-Methylpyrrolidin-2-one hydrotribromide (MPHT) a mild reagent for selective bromination of carbonyl compounds: synthesis of substituted 2-bromo-1-naphtols
作者:Alain Bekaert、Olivier Provot、Olimihamina Rasolojaona、Mouâd Alami、Jean-Daniel Brion
DOI:10.1016/j.tetlet.2005.04.049
日期:2005.6
The reaction of the N-methylpyrrolidin-2-one hydrotribromide complex (MPHT) with substituted-1-tetralones has been investigated. This safety reagent proved to be successful for selective α,α-dibromination of tetralones. Moreover, under base-free conditions, several 2-bromo-1-naphtols were obtained from tetralones in a ‘one pot’ sequence in good to excellent yields.
研究了N-甲基吡咯烷基-2-酮氢溴酸盐配合物(MPHT)与取代的1-四氢萘酮的反应。该安全试剂被证明对四氢萘酮的选择性α,α-二溴化是成功的。而且,在无碱条件下,从四氢萘醌以“一锅”顺序获得了好于优的几个2-溴-1-萘酚。