2,4-Dimethylstyrene

Base Information

• Chemical Name: 2,4-Dimethylstyrene
• CAS No.: 2234-20-0
• Molecular Formula: C10H12
• Molecular Weight: 132.205
• Hs Code.: 2902909090
• European Community (EC) Number: 218-781-3
• NSC Number: 62089
• UNII: 543ES1O25E
• DSSTox Substance ID: DTXSID00176875
• Nikkaji Number: J44.162G
• Wikidata: Q27261154
• Mol file: 2234-20-0.mol

Synonyms:2,4-DIMETHYLSTYRENE;2234-20-0;2,4-Dimethyl-1-vinylbenzene;1-ethenyl-2,4-dimethylbenzene;4-Vinyl-m-xylene;1,3-Dimethyl-4-vinylbenzene;1-Vinyl-2,4-dimethylbenzene;Styrene, 2,4-dimethyl-;Benzene, 1-ethenyl-2,4-dimethyl-;1,3-Dimethyl-4-ethenylbenzene;EINECS 218-781-3;NSC 62089;BRN 2037627;UNII-543ES1O25E;543ES1O25E;NSC-62089;NSC62089;Styrene,4-dimethyl-;2,4-dimethyl-styrene;WLN: 1U1R B1 D1;2,4-Dimethyl-1-vinylbenzene #;DTXSID00176875;MFCD00014937;AKOS009157722;LS-147215;CS-0158031;FT-0619553;D83821;EN300-1243718;Q27261154;2,4-Dimethylstyrene, 97%, contains ~500 ppm tert-butylcatechol as stabilizer;25990-16-3

Chemical Property of 2,4-Dimethylstyrene

Chemical Property:

• Appearance/Colour: clear colorless liquid
• Vapor Pressure: 0.554mmHg at 25°C
• Melting Point: ?64 °C(lit.)
• Refractive Index: n20/D 1.543(lit.)
• Boiling Point: 196.7 °C at 760 mmHg
• Flash Point: 60 °C
• PSA: 0.00000
• Density: 0.893 g/cm³
• LogP: 2.94640
• Storage Temp.: 0-6°C
• XLogP3: 3.4
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 1
• Exact Mass: 132.093900383
• Heavy Atom Count: 10
• Complexity: 115

Purity/Quality:

98%,99%, ^*data from raw suppliers

2,4-Dimethylstyrene ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xi
• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36/37/39

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: CC1=CC(=C(C=C1)C=C)C

Technology Process of 2,4-Dimethylstyrene

There total 21 articles about 2,4-Dimethylstyrene which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 86.0%

2,4-dimethyl-1-[(E)-2-trimethylsilylethenyl]benzene (193277-05-3) → 2,4-dimethylstyrene (2234-20-0)

Guidance literature:

With trifluoroacetic acid;

DOI:10.1002/anie.199713131

Reference yield:

1,1-bis-(2,4-dimethyl-phenyl)-ethane (10224-95-0) → 2,4-dimethylstyrene (2234-20-0) + 2,6-dimethylstyrene (2039-90-9) + m-xylene (108-38-3,104809-90-7)

Guidance literature:

at 390 ℃; oder bei 510-530grad;

Reference yield:

1,1-bis-(2,4-dimethyl-phenyl)-ethane (10224-95-0) → 2,4-dimethylstyrene (2234-20-0) + 1-ethyl-2,4-dimethyl-benzene (874-41-9) + m-xylene (108-38-3,104809-90-7)

Guidance literature:

at 500 ℃;

upstream raw materials:

1,1-bis-(2,4-dimethyl-phenyl)-ethane

1-(2,4-dimethylphenyl)ethanol

2-(2,4-dimethylphenyl)ethanol

sulfurous acid bis-(2,4-dimethyl-phenethyl ester)

Downstream raw materials:

4-(2,4-Dimethyl-α-methylbenzyl)-brenzkatechin

1-ethyl-2,4-dimethyl-benzene

tert-butyl (E)-3-(2',4'-dimethylphenyl)prop-2-en-1-yl carbonate

2,4,2',4'-tetramethyl-stilbene

Refernces

• 1、 Kido, Yoshiyuki,Yoshimura, Satoru,Yamaguchi, Masahiko,Uchimaru, Tadafumi. "Aromatic β-silylethenylation reactions via organogallium compounds". . p. 1445 - 1458. Retrieved 2007/10/03.