27132-81-6

Basic information

• Product Name: 2,4-Dimethyl-1,4-pentadien-3-one
• Synonyms: 2,4-Dimethyl-1,4-pentadien-3-one
• CAS NO: 27132-81-6
• Molecular Formula: C₇H₁₀O
• Molecular Weight: 110.15
• Mol File: 27132-81-6.mol

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 2,4-Dimethyl-1,4-pentadien-3-one(CAS DataBase Reference)
• NIST Chemistry Reference: 2,4-Dimethyl-1,4-pentadien-3-one(27132-81-6)
• EPA Substance Registry System: 2,4-Dimethyl-1,4-pentadien-3-one(27132-81-6)

Safety Data

• Hazardous Substances Data: 27132-81-6(Hazardous Substances Data)

Upstream product

• 17346-16-6 2,4-dibromo-2,4-dimethylpentan-3-one 
• 1000-87-9 2,4-dimethyl-2,3-pentadiene 
• 756-77-4 tetramethylammonium dimethyl phosphate 

Downstream Products

• 2407-99-0 hexahydroindolizin-7(1H)-one 
• 23581-42-2 octahydro-2H-quinolizine-2-one 
• 83863-64-3 7.9-dimethyl-spiro[5.5]undecane-3-one 
• 193205-00-4 4-(4-(4-fluorobenzyl)piperidin-1-yl)-2-butanone 
• 25112-78-1 2-methyl-2-(3-oxobutyl)-1,3-cyclopentanedione 

Relevant articles and documents

Functional Group Hybrids. Reactivity of α'-Nucleofuge α,β-Unsaturated Ketones. 1. Reactions with Organocopper Reagents

A series of α-nucleofuge α',β'-unsaturated ketones encompassing a variety of structural types and nucleofuges was prepared.Treatment of these compounds with lithium dimethylcuprate or methylcopper leads primarily to either reductive cleavage of the α-nucl

PHOTOOXYGENATION OF TETRAMETHYLALLENE COMPETING (2+2) CYCLOADDITION AND ENE-REACTIONS WITH SINGLET OXYGEN

TPP-sensitized photooxygenation of tetramethylallene (4) in carbon tetrachloride yields acetone (5), 2,4-dimethyl-4-hydroxy-1-penten-3-one (8) and 2,4-dimethyl-1,4-pentadien-3-one (9) in a ratio of 35:20:45, besides minor amounts of resinous products and carbon dioxide.Isomerization of 4 to 2,4-dimethyl-1,3-pentadiene (6) does not occur under the reaction conditions.DABCO quenches the photooxygenation, whereas 2,4,6-tri-t-butylphenol (10) enhances the oxygen consumption rate but leaves the ratio of 5:8:9 unchanged.These results indicate that 4 is oxygenated by singlet oxygen.A mechanism is proposed according to which acetone is generated via a (2+2) cycloaddition whereas 8 and 9 are formed via an ene-reaction between 4 and singlet oxygen.