2-Hydroxy-3-methylcyclopent-2-enon Chemische Eigenschaften,Einsatz,Produktion Methoden
Chemische Eigenschaften
Methyl cyclopentenolone occurs in beechwood tar
and has a caramel-like (burnt sugar) odor. It has been identified as a flavor
component in food. Crystals of the compound usually contain 1 mol
of water. Synthetic routes of production are of limited importance in comparison
with isolation from beechwood tar. Homologs of cyclotene such as
3-ethyl-2-hydroxy-2-cyclopenten-1-one, C
7H
10O
2, Mr 126.16,
2-hydroxy-3,4-dimethyl-2-cyclopenten-1-one, C
7H
10O
2, Mr 126.16, and 2-hydroxy-3,5-dimethyl-2-cyclopenten-1-one, C
7H
10O
2, Mr 126.16,
are also used as flavor ingredients and have similar caramel-like
properties.
Cyclotene and its homologs are frequently used in flavor compositions for its
caramel note, for example, in beverages and in confectionery.
Occurrence
Reported to be found during the dry distillation of wood and in the corresponding tar oil. It has also been identified in fenugreek (FenaroWs Handbook of Flavor Ingredients, 1975).
Verwenden
Methyl Cyclopentenolone is a flavoring agent that is a white crys-
talline powder. it has a nutty odor suggesting a maple-licorice aroma
when diluted. it is soluble in alcohol and propylene glycol, slightly
soluble in most fixed oils, and sparingly soluble in water. it is obtained
by synthesis. it is also termed 3-methyl-cyclopentane-1,2-dione.
synthetische
By ketonic hydrolysis of the corresponding dicarboxylic ester (Arctander, 1969)
Allgemeine Beschreibung
Methyl cyclopentenolone is one of the flavor compounds of maple syrup, coffee oil and wood smoke. It is reported to be one the key aroma compounds in Wasanbon sugar, contributing to the maple-like flavor. Methyl cyclopentenolone is also one of the major volatile compound formed during the thermal degradation of glucose.
2-Hydroxy-3-methylcyclopent-2-enon Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
