34014-87-4

Usage

Uses

Used in Perfumery and Flavoring Industry:
2,5-Cyclohexadien-1-one, 3,4,4,5-tetramethylis used as a fragrance ingredient for its strong floral scent, contributing to the production of rose, jasmine, and gardenia scents in perfumes. Its odor-masking properties also make it valuable in creating and enhancing the aroma of various products.
Used in Cosmetic and Personal Care Products:
In the cosmetic and personal care industry, 2,5-Cyclohexadien-1-one, 3,4,4,5-tetramethylis utilized for its potential antimicrobial and antioxidant properties, which can enhance the shelf life and effectiveness of products.
Used in Antimicrobial Applications:
2,5-Cyclohexadien-1-one, 3,4,4,5-tetramethylhas been studied for its potential antimicrobial properties, which can be harnessed in various applications where microbial control is necessary, such as in the preservation of food products or in sanitizing agents.
Used in Antioxidant Formulations:
Given its antioxidant potential, 2,5-Cyclohexadien-1-one, 3,4,4,5-tetramethylcan be incorporated into formulations that require protection against oxidative damage, such as in the food and pharmaceutical industries or in the development of skincare products to protect against environmental stressors.

Upstream product

• 22681-02-3 1,2,6,6-Tetramethyl-bicyclo<3.1.0>hexen-(2)-on-(4) 
• 40441-52-9 2,6-Dibrom-3,4,4,5-tetramethylcyclohexanon 
• 52103-92-1 4-Hydroxy-3,4,5,5-tetramethyl-2-cyclohexen-1-on 
• 17429-29-7 4,4,5-trimethyl-2-cyclohexen-1-one 
• 40441-50-7 3,4,4,5-Tetramethylcyclohexanon 
• 88245-90-3 2,2,3-trimethyl-5-oxo-hexanal 
• 3102-33-8 trans-3-penten-2-one 

Downstream Products

• 89549-36-0 1,1,2,6,-Tetramethyl-4-methylen-2,5-cyclohexadien 
• 89549-25-7 3,3',4,4,4',4',5,5'-Octamethyl-1,1'-(2-buten-4,1-diylidene)bis(2,5-cyclohexadien) 
• 77873-05-3 1-Chlormethylen-3,4,4,5-tetramethyl-2,5-cyclohexadien 
• 40441-55-2 3,4,4,5-Tetramethyl-2-cyclohexen-1-on 
• 77885-00-8 Bis(3,4,4,5-tetramethyl-2,5-cyclohexadien-1-yliden)ethen 
• 90495-09-3 2-(3,4,4,5-Tetramethyl-2,5-cyclohexadien-1-yliden)ethanal 
• 344741-57-7 Triphenyl-[2-(3,4,4,5-tetramethyl-cyclohexa-2,5-dienylidene)-ethylidene]-λ⁵-phosphane 
• 90495-13-9 Trimethyl<2-(3,4,4,5-tetramethyl-2,5-cyclohexadien-1-yliden)ethyl>ammonium-iodid 
• 90495-14-0 Triphenyl<2-(3,4,4,5-tetramethyl-2,5-cyclohexadien-1-yliden)ethyl>phosphonium-iodid 
• 90580-89-5 3,3',4,4,4',4',5,5'-Octamethyl-1,1'-(2-buten-4,1-diylidene)bis(2,5-cyclohexadien) 
• 90580-90-8 3,3',4,4,4',4',5,5'-Octamethyl-1,1'-(2,4-hexadien-6,1-diyliden)bis(2,5-cyclohexadien) 
• 90580-91-9 3,3',4,4,4',4',5,5'-Octamethyl-1,1'-(2,4,6-octatrien-8,1-diyliden)bis(2,5-cyclohexadien) 

Relevant academic research and scientific papers

Structure-Odor Correlation, XIII. - Synthesis and Olfactive Properties of Megastigmatrienone Analogues

The key compound 9 was readily prepared in larger quantities by an improvement of a known procedure.Addition of carbanions to the unprotected ketone 9 gives the hydroxy ketones 16 - 21 via the acetals 10 - 15.Dehydration of 16 - 20 furnishes the dienones

A Contribution to Dienone-Phenol Rearrangements

An improved synthesis for dienone 1a and new synthesis for the spirodienones 1b and c are submitted.Whereas 1a is stable in trifluoroacetic acid, 1b and c rearrange to form the dienones 13b and c.Only 13c is further transformed into the stable product phe

The Synthesis of 4-Methylcyclohexa-2,5-dienones from Phenols

4-Alkyl phenols have been converted by a known sequence into 2-aryloxyisobutyric acids and thence, by bromination at the 4-position of the aromatic ring with concomitant intramolecular lactone formation, into masked 4-alkyl-4-bromocyclohexa-2,5-dienones.Reaction with lithium dimethylcuprate, as a model for other lithium dialkylcuprates, replaces the bromine by a methyl group.Hydrolytic demasking gives 4-alkyl-4-methylcyclohexa-2,5-dienones.The method should allow the general synthesis of 4-alkylated cyclohexa-2,5-dienones from phenols via a nucleophilic alkylation step.This contrasts with an existing route which uses electrophilic alkylation of phenols or phenoxide ions by a restricted range of reactive alkylating agents.