DIMETHALLYL SULPHIDE

Base Information

• Chemical Name: DIMETHALLYL SULPHIDE
• CAS No.: 52444-06-1
• Molecular Formula: C8H14S
• Molecular Weight: 142.26
• Hs Code.: 2930909090
• Mol file: 52444-06-1.mol

Synonyms:DIMETHALLYL SULPHIDE;Bis(2-methyl-2-propenyl) sulphide~Methallyl sulphide;Bis(2-methyl-2-propenyl)sufhide;Dimethallylsulfide

Chemical Property of DIMETHALLYL SULPHIDE

Chemical Property:

• Vapor Pressure: 0.895mmHg at 25°C
• Refractive Index: 1.474
• Boiling Point: 186.8°C at 760 mmHg
• Flash Point: 57°C
• PSA: 25.30000
• Density: 0.865g/cm³
• LogP: 2.87180

Purity/Quality:

99% ^*data from raw suppliers

DIMETHALLYL SULPHIDE 94.00% ^*data from reagent suppliers

Safty Information:

• Pictogram(s): R36/37/38:Irritating to eyes, respiratory system and skin.
• Hazard Codes: R36/37/38:Irritating to eyes, respiratory system and skin.
• Statements: R36/37/38:Irritating to eyes, respiratory system and skin.
• Safety Statements: S23:Do not inhale gas/fumes/vapour/spray.; S26:In case of contact with eyes, rinse immediately with plenty of water and s

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of DIMETHALLYL SULPHIDE

There total 4 articles about DIMETHALLYL SULPHIDE 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: 25.0%

2-methyl-1-propenylbromide (3017-69-4) → 2,6-Dimethyl-4-thia-2,5-heptadien (52444-06-1)

Guidance literature:

With bis(tributyltin)sulfide; tetrakis(triphenylphosphine) palladium⁽⁰⁾; In toluene; at 120 ℃; for 20h;

DOI:10.1246/bcsj.58.3657

Reference yield:

2-Methyl-1-(2-methyl-1-trimethylsilanyloxy-propylsulfanyl)-1-trimethylsilanyloxy-propane (78606-83-4) → 2,6-Dimethyl-4-thia-2,5-heptadien (52444-06-1)

Guidance literature:

With (iodomethyl)silane; trimethylamine; Yield given. Multistep reaction; 1. dichloromethane, -78 deg C, 20 min 2.) 0 deg C, overnight;

DOI:10.1016/S0040-4039(01)90244-8

Reference yield:

3,5-Dimethyl-[1,4]thiatellurine + methyl iodide (74-88-4) → 2,6-Dimethyl-4-thia-2,5-heptadien (52444-06-1)

Guidance literature:

With n-butyllithium; Multistep reaction; 1.) THF, hexane, -105 deg C, 15 min, 2.) THF, hexane, a) from -105 deg C to RT, b) 20 deg C, 1 h;

DOI:10.1016/0022-328X(92)80184-Y

upstream raw materials:

n-butyllithium

methanethiosulfonic acid S-methyl ester

2-methyl-1-propenylbromide

2-Methyl-1-(2-methyl-1-trimethylsilanyloxy-propylsulfanyl)-1-trimethylsilanyloxy-propane

Refernces

• 1、 Kosugi, Masanori,Ogata, Toshimi,Terada, Masahiro,Sano, Hiroshi,Migita, Toshihiko. "Palladium-catalyzed Reaction of Stannyl Sulfide with Aryl Bromide. Preparation of Aryl Sulfide". . p. 3657 - 3658. Retrieved 2007/10/02.