Bis((p-tolyl)methyl) disulphide

Base Information

• Chemical Name: Bis((p-tolyl)methyl) disulphide
• CAS No.: 20193-94-6
• Molecular Formula: C16H18 S2
• Molecular Weight: 274.451
• Hs Code.: 2930909090
• European Community (EC) Number: 243-576-0
• DSSTox Substance ID: DTXSID70942261
• Nikkaji Number: J280.472G
• Wikidata: Q82919228
• Mol file: 20193-94-6.mol

Synonyms:Bis((p-tolyl)methyl) disulphide;EINECS 243-576-0;20193-94-6;BIS[(P-TOLYL)METHYL] DISULPHIDE;bis(4-methylbenzyl) disulfide;Bis(4-methylbenzyl) persulfide;SCHEMBL2802287;DTXSID70942261;Disulfide, bis((4-methylphenyl)methyl);1,1'-[Disulfanediylbis(methylene)]bis(4-methylbenzene)

Chemical Property of Bis((p-tolyl)methyl) disulphide

Chemical Property:

• Boiling Point: 398.6°Cat760mmHg
• Flash Point: 220.7°C
• PSA: 50.60000
• Density: 1.127g/cm³
• LogP: 5.38500
• XLogP3: 4.6
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 5
• Exact Mass: 274.08499292
• Heavy Atom Count: 18
• Complexity: 189

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: CC1=CC=C(C=C1)CSSCC2=CC=C(C=C2)C

Technology Process of Bis((p-tolyl)methyl) disulphide

There total 27 articles about Bis((p-tolyl)methyl) disulphide 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: 88.9%

p-methylbenzyl thiocyanate (18991-39-4) + sodium methylate (124-41-4) → methyl p-methylbenzyl thioether (5925-57-5) + bis-(4-methyl-benzyl)-disulfide (20193-94-6)

Guidance literature:

for 0.0833333h; Ambient temperature;

DOI:10.1246/bcsj.56.248

Reference yield: 88.0%

4-Methylbenzyl chloride (104-82-5) + thiourea (17356-08-0) → bis-(4-methyl-benzyl)-disulfide (20193-94-6)

Guidance literature:

With tetrachloromethane; water; triethylamine; In glycerol; at 50 ℃; for 12h;

DOI:10.1007/s13738-015-0610-3

Reference yield: 86.0%

thiosulfuric acid S-4-methylbenzyl ester O- sodium salt → bis-(4-methyl-benzyl)-disulfide (20193-94-6)

Guidance literature:

With samarium; In water; at 90 ℃; for 4h;

DOI:10.1016/S0040-4039(02)01915-9

upstream raw materials:

p-methylbenzyl thiocyanate

4-methylbenzylthiol

chloroamine-T

bis(4-methylbenzyl)sulfane

Downstream raw materials:

bis(4-methylbenzyl)sulfane

2-(p-tolyl)thieno[3,2-b]pyridin-3-ol

7-methoxy-2-p-tolylthieno[3,2-b]pyridin-3-ol

N-benzyl-p-toluenesulfonamide

Refernces

• 1、 Ding, Tianqi,Jiang, Lvqi,Yi, Wenbin. "Synthesis of difluoromethyl and deuterium-labeled difluoromethyl thioethers from aliphatic electrophiles". . p. 3995 - 3998. Retrieved 2020/04/17.
• 2、 He, Wei,Ding, Yong,Tu, Jianzhuo,Que, Chuqiang,Yang, Zhanhui,Xu, Jiaxi. "Thermal conversion of primary alcohols to disulfides: Via xanthate intermediates: An extension to the Chugaev elimination". . p. 1659 - 1666. Retrieved 2018/03/21.