Cyclopentanone Derivatives from 5-Hydroxymethylfurfural via 1-Hydroxyhexane-2,5-dione as Intermediate.
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DOI: 10.1002/cssc.201702100
Abstract: An efficient strategy for the conversion of biomass derived 5-hydroxymethylfurfural (HMF) into 2-hydroxy-3-methylcyclopent-2-enone (MCP) by an intramolecular aldol condensation of 1-hydroxyhexane-2,5-dione (HHD) has been developed. Further transformations of MCP towards the diol, enol acetate, levulinic… read more here.
Keywords: cyclopentanone derivatives; hydroxyhexane; hydroxyhexane dione; derivatives hydroxymethylfurfural ... See more keywords
Regioselective Syntheses of Fluorinated Cyclopentanone Derivatives: Ring Construction Strategy Using Transition-Metal–Difluorocarbene Complexes and Free Difluorocarbene
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DOI: 10.1055/s-0036-1591728
Abstract: The syntheses of fluorinated cyclopentanone derivatives, which have pharmaceutical and agrochemical importance are reported. The catalytic reaction of copper(I) and nickel(II) difluorocarbenes with silyl dienol ethers afforded 4,4-difluoro- and 5,5-difluorocyclopent-1-en-1-yl silyl ethers, respectively. The fluorine-directed… read more here.
Keywords: cyclopentanone derivatives; free difluorocarbene; syntheses fluorinated; difluorocarbene ... See more keywords