Nazarov cyclisation of dienone-esters and tetrahydropyrones using trimethylsilyltriflate |
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Authors: | John F P Andrews Andrew C Regan |
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Institution: | Chemical Laboratory, The University, Canterbury Kent CT2 7NH, U.K. |
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Abstract: | Dienone- and tetrahydropyrone- esters undergo Nazarov-type cyclisation using trimethylsilyltriflate. Cyclopentenone esters have been synthesized via a Nazarov cyclisation of the corresponding ,′-dienone esters or tetrahydro-γ-pyrone esters employing trimethylsilyltriflate at room temperature. The dienone esters were synthesised by a short two-step acylation-Knoevenagel sequence. |
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Keywords: | Nazarov Cyclisation Trimethylsilyltriflate Dienone Tetrahydropyrone Knoevenagel Condensation |
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