2-METHYL-3-HEXYNE

Base Information

• Chemical Name: 2-METHYL-3-HEXYNE
• CAS No.: 36566-80-0
• Molecular Formula: C7H12
• Molecular Weight: 96.1723
• Hs Code.: 2901299090
• Mol file: 36566-80-0.mol

Synonyms:1-Ethyl-2-isopropylacetylene;2-Methyl-3-hexyne

Chemical Property of 2-METHYL-3-HEXYNE

Chemical Property:

• Vapor Pressure: 48.4mmHg at 25°C
• Melting Point: -116.6°C
• Refractive Index: 1.421
• Boiling Point: 97.1°C at 760 mmHg
• PSA: 0.00000
• Density: 0.752g/cm³
• LogP: 2.05580
• Water Solubility.: 173.1mg/L(25 oC)

Purity/Quality:

97% ^*data from raw suppliers

2-METHYL-3-HEXYNE ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 2-METHYL-3-HEXYNE

There total 12 articles about 2-METHYL-3-HEXYNE 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: 48.0%

ethyl bromide (74-96-4) + 1,2-dibromo-3-methylbutane (10288-13-8) → 2-methyl-3-hexyne (36566-80-0)

Guidance literature:

With sodium amide; In ammonia;

Reference yield:

ethyl bromide (74-96-4) + 1,1-dibromo-3-methyl-1-butene (32363-92-1) → 1-bromo-butane (109-65-9) + 2-methyl-3-hexyne (36566-80-0)

Guidance literature:

With n-butyllithium; Yield given. Multistep reaction. Title compound not separated from byproducts; 1.) hexane, THF, -30 - -40 deg C; 2.) hexane, THF, HMPA, -40 deg C, 30 min; -40 deg C to r.t., 6 h; r.t., 12 h;

Reference yield:

diethyl sulfate (64-67-5) + 1-lithio-3-methyl-1-butyne (65108-24-9) → 2-methyl-3-hexyne (36566-80-0)

Guidance literature:

In tetrahydrofuran;

DOI:10.1021/ja00442a017

upstream raw materials:

3-methyl-but-1-yne

diethyl sulfate

1-lithio-3-methyl-1-butyne

ethyl iodide

Downstream raw materials:

(E)-2-methyl-3-hexene

Refernces

• 1、 Maercker,Girreser. "Stereoselective synthesis of vicinal dilithioalkenes by addition of lithium metal, to carbon-carbon triple bonds". . p. 8019 - 8034. Retrieved 2007/10/02.
• 2、 Courtneidge, John L.,Davies, Alwyn G.,Lusztyk, Ewa,Lusztyk, Janusz. "THE ELECTRON SPIN RESONANCE SPECTRA OF THE ANNULENE (CYCLOBUTADIENE) RADICAL CATIONS, R4C4+.". . p. 155 - 164. Retrieved 2007/10/02.