ChemInform Abstract: Synthesis of 2-Hydroxy-3-methyl-2-cyclopentenone, Corylone, from 2- Ketoglutaric Acidcyclopentane derivativesring closure reactionscosmetics, perfumery, odorantsChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 ...
LiuSCMInformaworldSynthetic CommunicationsSynthesis of 2-Hydroxy-3-Methyl-2-Cyclopentenone from Isoprene. Tse-Lok H,Shing-Hou L. Synthetic Communications . 1983Tse-Lok H,Shing-Hou L.Synthesis of 2-Hydroxy-3-Methyl-2-Cyclopentenone from Isoprene. Synthetic Communications . 1983...
Chemischer InformationsdienstSynthesis of 2-Hydroxy-3-Methyl-2-Cyclopentenone from Isoprene. Tse-Lok H,Shing-Hou L. Synthetic Communications . 1983Tse-Lok H,Shing-Hou L.Synthesis of 2-Hydroxy-3-Methyl-2-Cyclopentenone from Isoprene. Synthetic Communications . 1983...
Synthesis of 2-Hydroxy-3-Methyl-2-Cyclopentenone from Isoprene. Tse-Lok H,Shing-Hou L. Synthetic Communications . 1983Tse-Lok H,Shing-Hou L.Synthesis of 2-Hydroxy-3-Methyl-2-Cyclopentenone from Isoprene. Synthetic Communications . 1983
The resulting cis-3-nonene-2,6-dione-8-yne is reacted at -20-50 deg.C in the presence of a basic catalyst such as Na or Ca to manufacture efficiently 2-propargyl-3-methyl-4-hydroxy-2-cyclopentenone.YAMACHIKA HIROSHISAITO KENJIKONO NOBUHARU...
The resulting cis-3-nonene-2,6-dione-8-yne is reacted at -20-50 deg.C in the presence of a basic catalyst such as Na or Ca to manufacture efficiently 2-propargyl-3-methyl-4-hydroxy-2-cyclopentenone.YAMACHIKA HIROSHISAITOU KENJI
EXAMPLE:l(-)-3-Hydroxy-3-methyl-2-propargyl-4-cyclopentenone. USE:Farm chemicals or intermediate thereof. Further, it is used as an intermediate of perfumes and drugs. For example, the rearrangement of the compound gives a cyclopentenone with alpha(+) optical rotatory power which is very ...
Danda H, Maehara A, Umemura T (1991) Preparation of (4S)-4- hydroxy-3-methyl-2-(2′-propynyl)-2-cyclopentenone by combi- nation of enzymatic hydrolysis and chemical transformation. Tetrahedron Lett 32:5119-5122Chem Inform Abstract:Preparation of.(4S)-4-Hydroxy-3-methyl-2-.(2’’-...
CONSTITUTION:2-Propargyl -3- methyl -4-hydroxy-2-cyclopentenone of formula IIuseful as an intermediate of prostaglandin (a drug), jasmone (perfumery), etc., is prepared by cyclizing cis-3-nonene-2,5-dion-8-yne of formula I at <=0 deg.C in the presence of water and a basic ...
hydrolyzate solution is extracted with a solvent such as methyl isobutyl ketone, ethyl acetate, cyclomethane, the solvent is distilled from the prepared organic layer, and the residue is treated by column chromatography, to isolate the desired l(-)-2-allyl-3-hydroxy-3-methyl-4-cyclopentenone.MIN...