Zn(OTf)2 catalyzed addition-cyclization reaction of allenylphosphine oxides with propargyl alcohol-unexpected formation of 2,5-dimethylenetetrahydrofurans and 2-substituted furans |
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| Authors: | Venu SrinivasK.V. Sajna K.C. Kumara Swamy |
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| Affiliation: | School of Chemistry, University of Hyderabad, Hyderabad 500046, AP, India |
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| Abstract: | A novel synthesis of 2,5-dimethylenetetrahydrofurans, 2-substituted furans and a β,ω-diketophosphonate in good to excellent yields has been achieved by the reaction of allenylphosphine oxides/allenylphosphonate with propargyl alcohol using zinc triflate/triethylamine combination. |
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| Keywords: | Allene Propargyl alcohol Zn-catalysis Cyclization Tetrahydrofurans |
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