2,8-DIMETHYLDIBENZOTHIOPHENE

Base Information

• Chemical Name: 2,8-DIMETHYLDIBENZOTHIOPHENE
• CAS No.: 1207-15-4
• Molecular Formula: C14H12S
• Molecular Weight: 212.315
• Hs Code.: 2934999090
• Mol file: 1207-15-4.mol

Synonyms:2,8-Dimethyldibenzothiophene;2,8-Dimethyldibenzo[b,d]thiophene;

Chemical Property of 2,8-DIMETHYLDIBENZOTHIOPHENE

Chemical Property:

• Vapor Pressure: 3.42E-05mmHg at 25°C
• Melting Point: 120 °C
• Refractive Index: 1.706
• Boiling Point: 364.9 °C at 760 mmHg
• Flash Point: 130.2 °C
• PSA: 28.24000
• Density: 1.181 g/cm³
• LogP: 4.67130

Purity/Quality:

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

2,8-Dimethyldibenzothiophene ^*data from reagent suppliers

Safty Information:

• Statements: 36/37/38
• Safety Statements: 26-36/37/39

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 2,8-DIMETHYLDIBENZOTHIOPHENE

There total 13 articles about 2,8-DIMETHYLDIBENZOTHIOPHENE 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: 94.0%

C16H18S2 → 2,8-dimethyldibenzothiophene (1207-15-4)

Guidance literature:

With sodium thiomethoxide; In N,N-dimethyl-formamide; at 180 ℃; for 18h; Inert atmosphere; Sealed tube;

DOI:10.1055/s-0037-1611974

Reference yield: 87.0%

di-(p-tolyl)sulfane (620-94-0) → 2,8-dimethyldibenzothiophene (1207-15-4)

Guidance literature:

With palladium(II) trifluoroacetate; silver(I) acetate; potassium carbonate; at 130 ℃; for 24h; Schlenk technique;

DOI:10.1002/chem.201402265

Reference yield: 85.0%

di(p-tolyl) sulfoxide (1774-35-2) → 2,8-dimethyldibenzothiophene (1207-15-4)

Guidance literature:

With ruthenium(III) chloride trihydrate; silver carbonate; trifluoroacetic acid; at 140 ℃; for 20h; Inert atmosphere;

DOI:10.1002/ejoc.201501075

upstream raw materials:

2,8-dibromodibenzothiophene

dimethyl sulfate

di(p-tolyl) sulfoxide

para-thiocresol

Downstream raw materials:

3,3'-dimethyl-biphenyl

Refernces

• 1、 Chatani, Naoto,Kawashima, Yuki,Kodama, Takuya,Masuya, Yoshihiro,Tobisu, Mamoru. "Thiolate-Initiated Synthesis of Dibenzothiophenes from 2,2′-Bis(methylthio)-1,1′-Biaryl Derivatives through Cleavage of Two Carbon-Sulfur Bonds". . p. 1995 - 1999. Retrieved 2019.
• 2、 Akhmetov, Vladimir,Amsharov, Konstantin Yu,Feofanov, Mikhail,Takayama, Ryo. "Facile Synthesis of Thienoacenes via Transition-Metal-Free Ladderization". . p. 14759 - 14766. Retrieved 2021/11/12.