Nazarov cyclisation of dienone-esters and tetrahydropyrones using trimethylsilyltriflate
摘要:
Cyclopentenone esters have been synthesized via a Nazarov cyclisation of the corresponding alpha,alpha'-dienone esters or tetrahydro-gamma-pyrone esters employing trimethylsilyltriflate at room temperature. The dienone esters were synthesised by a short two-step acylation-Knoevenagel sequence.
Nazarov cyclisation of dienone-esters and tetrahydropyrones using trimethylsilyltriflate
摘要:
Cyclopentenone esters have been synthesized via a Nazarov cyclisation of the corresponding alpha,alpha'-dienone esters or tetrahydro-gamma-pyrone esters employing trimethylsilyltriflate at room temperature. The dienone esters were synthesised by a short two-step acylation-Knoevenagel sequence.