1,1-Dimethylcyclopentane

Base Information

• Chemical Name: 1,1-Dimethylcyclopentane
• CAS No.: 1638-26-2
• Molecular Formula: C7H14
• Molecular Weight: 98.1882
• Hs Code.: 2902199090
• European Community (EC) Number: 216-673-0
• NSC Number: 74145
• UNII: HEN90T1I69
• DSSTox Substance ID: DTXSID00167662
• Nikkaji Number: J43.467A
• Wikidata: Q83037075
• Mol file: 1638-26-2.mol

Synonyms:1,1-DIMETHYLCYCLOPENTANE;gem-Dimethylcyclopentane;1638-26-2;Cyclopentane, 1,1-dimethyl-;NSC 74145;1,1-dimethyl-cyclopentane;HEN90T1I69;EINECS 216-673-0;NSC-74145;NSC74145;Cyclopentane,1-dimethyl-;UNII-HEN90T1I69;ghl.PD_Mitscher_leg0.791;1,1-DIMETHYLCYCOPENTANE;DTXSID00167662;AKOS006272659;FT-0699689;EN300-7577228

Chemical Property of 1,1-Dimethylcyclopentane

Chemical Property:

• Vapor Pressure: 71.5mmHg at 25°C
• Melting Point: -69.79°C
• Refractive Index: 1.423
• Boiling Point: 87.5 °C at 760 mmHg
• PSA: 0.00000
• Density: 0.772 g/cm³
• LogP: 2.58660
• XLogP3: 3.4
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 0
• Exact Mass: 98.109550447
• Heavy Atom Count: 7
• Complexity: 54.4

Purity/Quality:

98% ^*data from raw suppliers

1,1-Dimethylcyclopentane ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Chemical Classes: Solvents -> Aliphatics, Saturated (
• Canonical SMILES: CC1(CCCC1)C

Technology Process of 1,1-Dimethylcyclopentane

There total 69 articles about 1,1-Dimethylcyclopentane 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: 4.0%

tetramethylsilane (75-76-3) + cyclohexene (110-83-8) → methyl-cyclopentane (96-37-7) + cyclohexane (110-82-7,25012-93-5) + 1,1-Dimethylcyclopentane (1638-26-2) + 1,1-dimethylcyclohexane (590-66-9) + methyl cyclohexane (82166-21-0)

Guidance literature:

With aluminum tri-bromide; trifluoroacetic acid; In dichloromethane; Product distribution;

DOI:10.1039/c39800000748

Reference yield: 0.7%

3,3-dimethylpentane (562-49-2) → 2,2-dimethylpentane (590-35-2) + 3,3-dimethyl-1-pentene (3404-73-7) + 1,1-Dimethylcyclopentane (1638-26-2)

Guidance literature:

platinum; at 329.9 ℃; for 0.0833333h; under 121.7 Torr; Product distribution; Mechanism; hydrogenolysis, different pressures;

DOI:10.1039/f19827803573

Reference yield: 0.34%

2,2-dimethylpentane (590-35-2) → 3,3-dimethylpentane (562-49-2) + 2-Methylhexane (591-76-4) + (E)-4,4-dimethyl-2-pentene (690-08-4) + 4,4-dimethylpent-1-ene (762-62-9) + 1,1-Dimethylcyclopentane (1638-26-2)

Guidance literature:

platinum; at 329.9 ℃; for 0.0833333h; under 121.7 Torr; Product distribution; Mechanism; hydrogenolysis;

DOI:10.1039/f19827803573

upstream raw materials:

methyl magnesium iodide

1-chloro-1-methylcyclopentane

2-iodo-1,1-dimethyl-cyclopentane

1-bromo-2,2-dimethylcyclopentane

Downstream raw materials:

3,3-dimethylpentane

2,2-dimethylpentane

benzonitrile

2-Methylpentane

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