Ionic Liquid 1-Butyl-3-methylimidazolium Bromide ([Bmim][Br]) Acted as Both Solvent and Catalyst for a Green Reaction of Cross Benzoin Condensation

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Baramee Phungpis
Kanokkan Worawut
Potchanee Keawkumsan


Cross benzoin condensation using room temperature ionic liquids, namely 1-butyl-3-methylimidazolium bromide ([Bmim][Br]), acted as catalyzed and a solvent under NaOH base condition to afford desired cross-benzoin products 4a-i in satistactory yields (60-70%.) Homo-benzoin condensation 5a-d and 6a also were occurred as side reactions in 9-18% yields.

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