4-METHYL-2-PENTYNE

Base Information

• Chemical Name: 4-METHYL-2-PENTYNE
• CAS No.: 21020-27-9
• Molecular Formula: C6H10
• Molecular Weight: 82.1454
• Hs Code.: 2901299090
• Mol file: 21020-27-9.mol

Synonyms:1-Methyl-2-isopropylacetylene;2-Methyl-3-pentyne; 4-Methyl-2-pentyne; Isopropylmethylacetylene;Methyl(isopropyl)acetylene

Chemical Property of 4-METHYL-2-PENTYNE

Chemical Property:

• Vapor Pressure: 141mmHg at 25°C
• Melting Point: 110oC
• Refractive Index: n20/D 1.407(lit.)
• Boiling Point: 70.3°Cat760mmHg
• Flash Point: °C
• PSA: 0.00000
• Density: 0.738g/cm³
• LogP: 1.66570
• Storage Temp.: Flammables area

Purity/Quality:

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

4-Methyl-2-Pentyne ^*data from reagent suppliers

Safty Information:

• Hazard Codes: F
• Statements: 11
• Safety Statements: 16-23-24/25

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

Technology Process of 4-METHYL-2-PENTYNE

There total 10 articles about 4-METHYL-2-PENTYNE 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: 85.0%

C13H15F3OSe (74866-68-5) → 4-methylpent-2-yne (21020-27-9) + 4-methyl-1,2-pentadiene (13643-05-5)

Guidance literature:

With 1,4-diaza-bicyclo[2.2.2]octane; In benzene-d6; at 95 ℃; for 2h;

DOI:10.1021/ja00538a072

Reference yield: 31.0%

1,3,3-trimethylcyclopropene (3664-56-0) → 4-methyl-1,3-pentadiene (926-56-7,54363-49-4) + 4-methylpent-2-yne (21020-27-9) + 2-methyl-2,3-pentadiene (3043-33-2) + trans-2-methyl-1,3-pentadiene (926-54-5)

Guidance literature:

In pentane; at 23 ℃; Further byproducts given; Irradiation;

Reference yield: 31.0%

1,3,3-trimethylcyclopropene (3664-56-0) → 4-methyl-1,3-pentadiene (926-56-7,54363-49-4) + 4-methylpent-2-yne (21020-27-9) + 2-methyl-2,3-pentadiene (3043-33-2) + 2,3-dimethyl-buta-1,3-diene (513-81-5)

Guidance literature:

In pentane; at 23 ℃; Further byproducts given; Irradiation;

upstream raw materials:

4-chloro-4-methylpent-2-yne

1,3,3-trimethylcyclopropene

C₁₃H₁₅F₃OSe

C₁₃H₁₅F₃OSe

Downstream raw materials:

C₂₀H₂₁NO

C₂₀H₂₁NO

C₁₉H₂₄O₃

ethyl 6-isopropyl-2,5-dimethyl-4-phenyl-4H-pyran-3-carboxylate

Refernces

• 1、 Walsh, Robin,Wolf, Christian,Untiedt, Sven,Meijere, Armin de. "The Kinetics of Pyrolysis of 1,3,3-Trimethylcyclopropene. Evidence for the Involvement of Alkylidene Carbenes in the Thermal Isomerisation of Cyclopropenes". . p. 421 - 422. Retrieved 2007/10/02.
• 2、 Reich, Hans J.,Willis, William W.. "Organoselenium Chemistry. Formation of Acetylenes and Allenes by Syn Elimination of Vinyl Selenoxides". . p. 5967 - 5968. Retrieved 2007/10/02.