2,5-Diethylthiophene

Base Information

• Chemical Name: 2,5-Diethylthiophene
• CAS No.: 5069-23-8
• Molecular Formula: C8H12 S
• Molecular Weight: 140.249
• Hs Code.: 2934999090
• Mol file: 5069-23-8.mol

Synonyms:2,5-Diethylthiophene

Chemical Property of 2,5-Diethylthiophene

Chemical Property:

• Vapor Pressure: 1.18mmHg at 25°C
• Boiling Point: 181°C at 760 mmHg
• Flash Point: 40.8°C
• PSA: 28.24000
• Density: 0.97g/cm³
• LogP: 2.87290
• Storage Temp.: 2-8°C

Purity/Quality:

99% ^*data from raw suppliers

2,5-Diethylthiophene 95+% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 2,5-Diethylthiophene

There total 11 articles about 2,5-Diethylthiophene 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: 49.0%

octane-3,6-dione (2955-65-9) → 2,5-diethyl-thiophene (5069-23-8)

Guidance literature:

With Lawessons reagent; In toluene; for 1h; Heating;

Reference yield:

octane (111-65-9) → 2,5-diethyl-thiophene (5069-23-8) + 2-ethyl-5-propylthiophene (54244-74-5) + o-xylene (95-47-6) + ethylbenzene (100-41-4,27536-89-6) + toluene (108-88-3,15644-74-3,16713-13-6) + benzene (71-43-2,26181-88-4,54682-86-9,13967-78-7,174973-66-1)

Guidance literature:

With hydrogen sulfide; aluminum oxide; chromium(III) oxide; Cr2O3 - Polirit - K2O - γ-Al2O3; potassium oxide; at 450 ℃; Product distribution;

DOI:10.1007/BF00953011

Reference yield:

2-ethylthiophene (872-55-9) + 5-Ethyl-2-acetythiophene → 2,5-diethyl-thiophene (5069-23-8)

Guidance literature:

With potassium hydroxide; acetic anhydride; hydrazine hydrate; In HClO₄; ethylene glycol;

upstream raw materials:

5-ethyl-2-iodothiophene

ethyl iodide

1-(5-ethyl-thiophen-2-yl)-ethanone

octane

Downstream raw materials:

(2,5-diethyl-[3]thienyl)-phenyl ketone

carbon disulfide

1-(2,5-diethyl-[3]thienyl)-ethanone

2-ethylthiophene

Refernces

• 1、 -. "4-?(thien-3-yl)methyl!-imidazole analgesics". . . Retrieved 2008/06/13.
• 2、 Davies, Alwyn G.,Julia, Luis,Yazdi, Safieh N.. "An Electron Spin Resonance Study of the Radical Cations of Pyrroles, Furans, and Thiophenes in Liquid Solution". . p. 239 - 244. Retrieved 2007/10/02.