1,2-DIMETHYLDIBENZOTHIOPHENE

Base Information

• Chemical Name: 1,2-DIMETHYLDIBENZOTHIOPHENE
• CAS No.: 31317-14-3
• Molecular Formula: C14H12S
• Molecular Weight: 212.315
• Hs Code.: 2934999090
• Mol file: 31317-14-3.mol

Synonyms:1,2-Dimethyldibenzothiophene;1,2-dimethyldibenzo[b,d]thiophene;

Chemical Property of 1,2-DIMETHYLDIBENZOTHIOPHENE

Chemical Property:

• Vapor Pressure: 2.52E-05mmHg at 25°C
• Refractive Index: 1.706
• Boiling Point: 369.4 °C at 760 mmHg
• Flash Point: 132.3 °C
• PSA: 28.24000
• Density: 1.181 g/cm³
• LogP: 4.67130

Purity/Quality:

99% ^*data from raw suppliers

1,2-DIMETHYLDIBENZOTHIOPHENE 98.00% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 1,2-DIMETHYLDIBENZOTHIOPHENE

There total 2 articles about 1,2-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:

4-amino-o-xylene (95-64-7) → 1,2-dimethyldibenzothiophene (31317-14-3)

Guidance literature:

Multi-step reaction with 4 steps

1: 1. conc. hydrochloric acid, NaNO₂; / 1. 0 degC, 30min.; 2. 40 - 45 degC

2: 95 percent / LiAlH₄ / diethyl ether / 3 h / Heating

3: 81 percent / NaOH / aq. ethanol / r.t., 30min., then reflux, 4h

4: 1. polyphosphoric acid; 2. Se powder / 1. 190-200 degC, 1.5h; 2. 300 degC, 8h

With hydrogenchloride; sodium hydroxide; selenium; lithium aluminium tetrahydride; PPA; sodium nitrite; In diethyl ether; ethanol;

Reference yield:

2-(3,4-dimethylphenylthio)cyclohexanone (89816-88-6) → 2,3-dimethyldibenzothiophene (31317-17-6) + 1,2-dimethyldibenzothiophene (31317-14-3)

Guidance literature:

With selenium; PPA; Yield given. Multistep reaction. Yields of byproduct given; 1. 190-200 degC, 1.5h; 2. 300 degC, 8h;

upstream raw materials:

2-(3,4-dimethylphenylthio)cyclohexanone

4-amino-o-xylene

Refernces