21835-00-7

Usage

Uses

Used in Flavoring Agents:
2-Hydroxy-3,4-dimethyl-2-cyclopenten-1-one is used as a flavoring agent in the food and beverage industry, providing a fruity aroma and enhancing the taste of various products.
Used in Fragrance Production:
In the fragrance industry, 2-Hydroxy-3,4-dimethyl-2-cyclopenten-1-one is utilized for its fruity scent, contributing to the creation of various perfumes and scented products.
Used in Organic Synthesis:
This chemical compound is also employed in organic synthesis, serving as a key intermediate in the production of other organic compounds, showcasing its versatility in chemical processes.
Used in the Chemical Industry:
2-Hydroxy-3,4-dimethyl-2-cyclopenten-1-one is used as a raw material in the chemical industry for the synthesis of various chemical products, taking advantage of its stable and low-volatility nature.

InChI:InChI=1/C7H10O2/c1-4-3-6(8)7(9)5(4)2/h4,9H,3H2,1-2H3

Upstream product

• 23033-97-8 2-methyl-4,5-dioxo-cyclopentane-1,3-dicarboxylic acid diethyl ester 
• 74-88-4 methyl iodide 
• 212518-27-9 4-[(2E)-1-oxo-2-methyl-2-butenyl]morpholine 
• 109682-71-5 4,5-Dihydroxy-2-methyl-cyclopenta-3,5-diene-1,3-dicarboxylic acid diethyl ester 

Relevant academic research and scientific papers

The Palladium(II)-Catalyzed Nazarov Reaction

(Equation presented) The PdCl2-catalyzed cyclization of α-alkoxy dienones leads to 2-hydroxycyclopentenones, whereas the Pd(OAc)2-catalyzed reaction leads to cross-conjugated cyclopentenones through an oxidative process.

Acetoacetic acid ester derivatives for the manufacture of α-hydroxycarbonyl compounds

The invention is concerned with a novel process for the manufacture of compounds of the formula STR1 wherein R1 signifies C1-5 -alkyl, especially methyl, ethyl, propyl or isopropyl, and the radicals R2 each independently represent hydrogen or C1-5 -alkyl, especially hydrogen or methyl, ethyl, propyl or isopropyl. The process is characterized in that a compound of the formula STR2 wherein R stands for C1-4 -alkoxy, chlorine, bromine or C1-4 -alkanoyloxy, R1 and R2 have the above significance and R3 represents C1-4 -alkyl. is hydrolyzed and subjected to an aldol condensation and, where R=C1-4 -alkoxy, the reaction product is subsequently subjected to an acid treatment. The compounds I are for the most part known flavoring substances.

Tobacco smoke chemistry. 1. A chemical and mass spectrometric study of tobacco smoke alkyl 2-hydroxy-2-cyclopentenones.

A series of alkyl 2-hydroxy-2-cyclopentenones, which comprise biologically and organoleptically active compounds, have been synthesized and subjected to high resolution mass spectrometric studies to clarify structurally significant fragmentation pathways. On the basis of these results, 26 alkyl 2-hydroxy-2-cyclopentenones were identified in the weakly acidic fraction of smoke condensate from American blend type cigarettes, eighteen of which had not been detected in tobacco smoke previously. The utility for identification purposes of the corresponding quinoxaline derivatives, obtained through condensation with o-phenylenediamine, is discussed.

Process for the preparation of alpha-hydroxycarbonyl compounds

The instant invention provides a new and improved method of preparing α-hydroxycarbonyl compounds, particulary substituted cyclopent-2-en-2-ol-1-ones and substituted 3-hydroxy-2(5H)-furanones. The novel sequence involves a number of novel intermediates including substituted 2-cyanocyclopentanones, substituted 2-cyano-2-hydroxycyclopentanones, and 2-cyano-2-hydroxyvalero-γ-lactones.