54580-23-3

Basic information

• Product Name: 2,4-Hexadiene, 2,5-dimethyl-3,4-bis(1-methylethyl)-
• Synonyms: 2,4-Hexadiene, 2,5-dimethyl-3,4-bis(1-methylethyl)-
• CAS NO: 54580-23-3
• Molecular Formula: C14H26
• Molecular Weight: 194.36
• Mol File: 54580-23-3.mol
• Article Data: 2

Chemical Properties

• Boiling Point: 252.6°C at 760 mmHg
• Flash Point: 98.8°C
• Appearance: /
• Density: 0.787g/cm³
• Vapor Pressure: 0.0306mmHg at 25°C
• Refractive Index: 1.449
• CAS DataBase Reference: 2,4-Hexadiene, 2,5-dimethyl-3,4-bis(1-methylethyl)-(CAS DataBase Reference)
• NIST Chemistry Reference: 2,4-Hexadiene, 2,5-dimethyl-3,4-bis(1-methylethyl)-(54580-23-3)
• EPA Substance Registry System: 2,4-Hexadiene, 2,5-dimethyl-3,4-bis(1-methylethyl)-(54580-23-3)

Safety Data

• Hazardous Substances Data: 54580-23-3(Hazardous Substances Data)

Usage

General Description

2,4-Hexadiene, 2,5-dimethyl-3,4-bis(1-methylethyl)- is a chemical compound also known as 2,5-dimethyl-3,4-diisopropenyl-1-hexene. It is an organic compound with a molecular formula C12H22 and a molecular weight of 166.30 g/mol. It is a colorless liquid at room temperature and is used as a monomer in the production of various polymers. It is also utilized in the synthesis of fragrances, pharmaceuticals, and other organic compounds. The compound is flammable and should be handled with care in a well-ventilated area.

InChI:InChI=1/C14H26/c1-9(2)13(10(3)4)14(11(5)6)12(7)8/h9,11H,1-8H3

Upstream product

• 94526-03-1 2,2,2'',2'',4,4,4'',4''-octamethyl-2',5'-dihydro<1,3,4>thiadiazole-2',5'-dispiro-3,3''-bis(thietane) 1,1,1'',1''-tetraoxide 
• 94526-04-2 2,2,2'',2'',4,4,4'',4''-octamethylthiirane-2',3'-dispiro-3,3''-bis(thietane) 1,1,1'',1''-tetraoxide 
• 94526-05-3 2,2,2',2',4,4,4',4'-octamethyl-3,3'-bithietanylidene 1,1,1',1'-tetraoxide 
• 94526-02-0 3-diazo-2,2,4,4-tetramethylthietane 1,1-dioxide 
• 94525-98-1 (2,2,4,4-Tetramethyl-1,1-dioxo-1λ⁶-thietan-3-ylidene)-hydrazine 
• 1133-23-9 1,2-di-isopropylidene-3,3,4,4-tetramethylcyclobutane 
• 1000-87-9 2,4-dimethyl-2,3-pentadiene 
• 58721-02-1 2,2,4,4-tetramethylthietan-3-one 1,1-dioxide 
• 69856-67-3 3,3,3',3',5,5,5',5'-octamethyl-3,3',5,5'-tetrahydro-4,4'-bi(4H-pyrazolylidene) 
• 54580-22-2 4-isopropyl-3-isopropylidene-2,5-dimethylhexa-1,4-diene 
• 34106-07-5 2,5-dimethyl-2,5-diacetoxy-3-hexyne 
• 920-39-8 isopropylmagnesium bromide 

Relevant articles and documents

Preparation, Pyrolysis, and Photolysis of Three Sterically Crowded Alkenes, 3,3,3',3',5,5,5',5'-Octamethyl-3,3',5,5'-tetrahydro-4,4'-bi(4H-pyrazolylidene) 2,2,4,4-Tetramethyl-3-(3,3,5,5-tetramethyl-3,5-dihydro-4H-pyrazol-4-ylidene)-thietane 1,1-Dioxide and 2,2,2',2',4,4,4',4'-Octameth...

Photolysis and pyrolysis of the title compounds involve a stepwise elimination of nitrogen and/or sulphur dioxide and reactions which can be interpreted in terms of a series of trimethylenemethane (TMM) biradical intermediates.However, the photosensitised photolysis of the bi(pyrazolylidene) (11) give products indicative of an elimination of both nitrogens and the generation of a tetramethylene-ethane (TME) biradical intermediate.New synthesis of a number of highly sterically crowded alkenes including 2,2,4,4-tetramethyl-3-(3,3,5,5-tetramethyl-3,4-dihydro-4H-pyrazol-4-ylidene)thietane 1,1-dioxide (12) and 2,2,2',2',4,4,4',4'-octamethyl-3,3'-bithietanylidene 1,1,1',1'-tetraoxide (13), are described.Flash vacuum pyrolysis (f.v.p) of 3,3,3',3',5,5,5',5'-octamethyl-3,3'-5,5'-tetrahydro-4,4'-bi(4H-pyrazolylidene) (11) at 400 deg C gives 3,3,5,5-tetramethyl-4-(2,2,3,3-tetramethylcyclopropylidene)-3,5-dihydro-4H-pyrazole (21), at ca. 400 deg C 1-isopropylidene-2,2,4,4,5,5-hexamethylspiropentane (22), and at ca. 580 deg C a ca. 5:1 mixture of 4-isopropyl-3-isopropylidene-2,5-dimethylhexa-1,4-diene (23) and 2-(2,3-dimethylbut-1-en-3-yl)-1-isopropyl-3,3-dimethylcyclopropene (27).Above 700 deg C a complex mixture of aromatic products and low molecular weight hydrocarbons is produced which includes ethane, ethylene, propene, isobutane, and isobutene, p-xylene, o-cumene and probably m-cumene, and 2,5-dimethylisopropylbenzene.F.v.p. of the dihydropyrazole sulphone (12) gives initially 2,2,4,4-tetramethyl-3-(2,2,3,3,-tetramethylcyclopropylidene)thietane 1,1-dioxide (41) and at higher temperatures similar mixtures to those obtained from the bipyrazolylidene (11).Similar results were also obtained for the f.v.p. of the bis-sulphone (13).Photolysis of the bipyrazolylidene (11) gave initially the dihydropyrazole (21) and then a 48:52 mixture of the spiro compound (22) and 2,2,2',2',3,3,3',3'-octamethylbicyclopropylidene (42).Photolysis of the dihydropyrazole sulphone (12) gave 2,2,4,4-tetramethyl-3-(2,2,3,3-tetramethylcyclopropylidene)thietane 1,1-dioxide (41).Benzophenone-sensitised photolysis of the bipyrazolylidene (11) gave 1,2-di-isopropylidene-3,3,4,4-tetramethylcyclobutane (32).