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- W2353304256 abstract "4-methyloctanoic acid is an important flavoring substances.It was prepared from the starting material 4-methylcyclohexanone.Firstly,4-methylcyclohexanone condensated with acetaldehyde(mol ratio=1.07∶1)over w(NaOH)=1% aqueous solution at 5～10 ℃.The aldol condensation product was dehydrated by phosphoric acid under reduced pressure at 100 ℃ and then hydrogenated by Pd/C〔w(Pd)=5%〕 catalyst,4-methyl-2-ethylcyclohexanone was obtained in 37.2% yield;Secondly,4-methyl-2-ethylcyclohexanone was oxidated to open the ring by CrO3/H2SO4,4-methyl-6-oxooctanoic acid was obtained in 87.9% yield;Finally,4-methyloctanoic acid was obtained through decarbonylation by Huang Minlon Reduction in 58.4% yield(mass fraction 99.3% pure).Their structures were characterized by IR、1HNMR、13CNMR、GC-MS." @default.
- W2353304256 created "2016-06-24" @default.
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- W2353304256 date "2009-01-01" @default.
- W2353304256 modified "2023-09-24" @default.
- W2353304256 title "Facile Synthesis of 4-Methyloctanoic Acid" @default.
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