Type: Article
[Bmim][InCl4]-Catalyzed Addition of Hydrazones to β-Diketones: An Efficient Regioselective Synthesis of Pyrazoles and Pyrazole-Fused Cyclohexanones
Journal: Synlett (09365214)Year: 2013Volume: 24Issue: 9Pages: 1086 - 1090
Safaei S.Mohammadpoor Baltork I.a Khosropour A.R.Moghadam M.aTangestaninejad S.aMirkhani V.a Khavasi H.R.
DOI:10.1055/s-0032-1316900Language: English
Abstract
The Lewis acidic room-temperature ionic liquid, [bmim][InCl4], was found to be an efficient catalyst for the regioselective synthesis of fully substituted pyrazoles and pyrazole-fused cyclohexanones through condensation of hydrazones with symmetrical and unsymmetrical 1,3-diketones. This procedure is simple, affording the corresponding products in good to high yields.