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ChemicalBook >  Product Catalog >  Flavors and fragrances >  Synthetic fragrances >  Carboxylic acids and esters >  Aliphatic dicarboxylic acid esters >  4,5-Dimethyl-3-hydroxy-2,5-dihydrofuran-2-one

4,5-Dimethyl-3-hydroxy-2,5-dihydrofuran-2-one

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4,5-Dimethyl-3-hydroxy-2,5-dihydrofuran-2-one Basic information
4,5-Dimethyl-3-hydroxy-2,5-dihydrofuran-2-one Chemical Properties
Safety Information
  • Hazard Codes Xn
  • Risk Statements 20/22
  • Safety Statements 36
  • RIDADR UN 3335
  • WGK Germany 3
  • HS Code 29329990
MSDS
4,5-Dimethyl-3-hydroxy-2,5-dihydrofuran-2-one Usage And Synthesis
  • Chemical Propertiesclear yellow liquid
  • Chemical Properties3-Hydroxy-4,5-dimethyl-2(5H)-furanone was found in, for example, fenugreek, coffee, sake, and florsherry. Its aroma characteristic changes from caramel-like at low concentrations to curry-like at high concentrations. A method described for its preparation comprises condensation of ethyl propionate with diethyl oxalate and reaction of the intermediately formed diethyl oxalylpropionate with acetaldehyde. Acidic decarboxylation of the ethyl 4,5-dimethyl-2,3-dioxodihydrofuran-4-carboxylate gives the title compound.
  • OccurrenceReported found in roasted Virginia tobacco, beef broth, beer, sherry, botryized wine, coffee, tea, fenugreek, sake and rice wine.
  • Aroma threshold valuesAroma characteristics at 1.0%; sweet, strong brown, cyclotene and maple like, caramel, toffee, maltol-like and burnt, brown sugar fenugreek-like, cooked and syrupy.
  • Taste threshold valuesTaste characteristics at 5–25 ppm; sweet, caramel, maple, walnut, brown sugar, nutty, cotton candy, fenugreek and celery-like, rum, roasted meaty with a honey nuance
4,5-Dimethyl-3-hydroxy-2,5-dihydrofuran-2-one(28664-35-9)Related Product Information
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