2-Ethyl-3-methylnaphthalene

Base Information

• Chemical Name: 2-Ethyl-3-methylnaphthalene
• CAS No.: 31032-94-7
• Molecular Formula: C₁₃H₁₄
• Molecular Weight: 170.254
• Mol file: 31032-94-7.mol

Synonyms:2-Ethyl-3-methylnaphthalene

Chemical Property of 2-Ethyl-3-methylnaphthalene

Chemical Property:

• Vapor Pressure: 0.00647mmHg at 25°C
• Melting Point: 71.01°C
• Refractive Index: 1.6070 (estimate)
• Boiling Point: 280.3°C at 760 mmHg
• Flash Point: 122.8°C
• PSA: 0.00000
• Density: 0.986g/cm³
• LogP: 3.71060

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 2-Ethyl-3-methylnaphthalene

There total 15 articles about 2-Ethyl-3-methylnaphthalene 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: 70.0%

(Z)-3-Benzyl-2-methyl-pent-2-enal (107647-64-3) → 2-Ethyl-3-methylnaphthalin (31032-94-7)

Guidance literature:

With titanium tetrachloride; In dichloromethane; for 2.5h; from -30 deg C to 23 deg C;

DOI:10.1016/S0040-4039(00)84587-6

Reference yield: 67.0%

1-Ethyl-4,5-diethynyl-2-methyl-benzene → 2-Ethyl-3-methylnaphthalin (31032-94-7)

Guidance literature:

With cyclohexa-1,4-diene; In chlorobenzene; at 150 - 160 ℃; for 6h;

DOI:10.1016/00404-0399(50)0967H-

Reference yield: 25.0%

PHTHALAZINE (253-52-1) + pentan-3-one (96-22-0) → 2-Ethyl-3-methylnaphthalin (31032-94-7)

Guidance literature:

PHTHALAZINE; pentan-3-one; With pyrrolidine; 9,10-dimethyl-9,10-dibora-9,10-dihydroanthracene; In diethylene glycol dimethyl ether; at 130 ℃; for 60h;

With 3-chloro-benzenecarboperoxoic acid; In diethylene glycol dimethyl ether; at -78 - 20 ℃;

DOI:10.1021/ol101701z

upstream raw materials:

(Z)-3-Benzyl-2-methyl-pent-2-enal

2,3-dimethylnaphthalene

methyl iodide

2-ethyl-2-methyl-decahydro-naphthalene

Refernces

• 1、 Kessler, Simon N.,Neuburger, Markus,Wegner, Hermann A.. "Bidentate Lewis acids for the activation of 1,2-diazines - A new mode of catalysis". supporting information; experimental part. p. 3238 - 3245. Retrieved 2011/07/08.
• 2、 Kraus, George A.,Choudhury, Prabir K.. "Annulations Using Phosphonium Salts and Enolate Anions - A Direct Route to Naphthalenes". . p. 97 - 98. Retrieved 2007/10/03.