Cyclotene
Methylcyclopentenolone ; Maple Lactone ; Corylone® ; 3-methylcyclopentane-1,2-dione ; 3-methyl-cyclopantane-1,2-dione ; 3-methyl-1,2-cyclopentanedione ; Kentonarome ; 2-hydroxy-3-methyl-2-cyclopenten-1-one ; Mcp ; Methyl cyclo pentenolone ; Methyl cyclopentenelone ; 3-methyl-1,2-cyclopentanedione
Photo credits: ScenTree SAS
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General Presentation
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CAS N° : : 765-70-8
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EINECS number : 212-154-8
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FEMA number : 2700
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Density : Volumetric mass density : 1,31 g/cm³
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Optical rotation : Lorem Ipsum
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Allergens : This ingredient does not contain any allergen.
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Refractive Index @20°C : Lorem Ipsum
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Volatility : Base
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Price Range : €€€
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Appearance : Colorless liquid
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FLAVIS number : 07.056
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JECFA number : 418
Information on synthetic ingredients
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Acid Value : Lorem Ipsum
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Boiling Point : 179°C
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Detection Threshold : 300 ppb (0,00003%)
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Molecular formula : C6H8O2
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Log P : 0,47
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Molecular Weight : 112,13 g/mol
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Fusion Point : 106°C
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Flash Point : Donnée indisponible.
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Vapor pressure : Lorem Ipsum
Uses
Other comments :
Stability :
Stable in perfumes and diverse functional bases
Uses in perfumery :
Cyclotene is used in ambery, tobacco, fougere and coumarinic notes. The impact of this ingredient increases during maceration.
Year of discovery :
1926
Isomerism :
Cyclotene has no isomer of olfactory interest.
Synthesis precursor :
Cyclotene is not a precursor to the synthesis of another compound of olfactory interest.
Natural availability :
Cyclotene is present in peanuts and roasted products like almond and coffee, but does not exist in natural extracts. It also gives maple syrup its characteristic smell.
Synthesis route :
Cyclotene is part of the cyclopentenone family, associated with pyranes and furans, both their structure and their greedy smell are close. Cyclotene can be synthesized by an acyloin condensation reaction by reacting esters of alkyl glutaric acid on themselves. Therefore, the acyloin cyclization of ethyl 2-methylglutarate followed by a treatment with cupric acid in methanol allows to obtain Cyclotene with a yield of 40%. Nowadays, other synthetic routes exist and have greater efficiency.
Regulations & IFRA
This ingredient is not restricted
