4-bromophenyl thiocyanate

Base Information

• Chemical Name: 4-bromophenyl thiocyanate
• CAS No.: 3226-41-3
• Molecular Formula: C7H4 Br N S
• Molecular Weight: 214.085
• Mol file: 3226-41-3.mol

Synonyms:Thiocyanicacid, p-bromophenyl ester (7CI,8CI); 1-Bromo-4-thiocyanatobenzene; NSC 404425;p-Bromophenyl thiocyanate

Chemical Property of 4-bromophenyl thiocyanate

Chemical Property:

• Vapor Pressure: 0.00322mmHg at 25°C
• Boiling Point: 283.1°Cat760mmHg
• Flash Point: 125°C
• Density: 1.68g/cm³

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 4-bromophenyl thiocyanate

There total 37 articles about 4-bromophenyl thiocyanate 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: 85.0%

trimethylsilyl cyanide (7677-24-9) + bis(4-bromophenyl)disulfide (5335-84-2) → 4-bromobenzenediazonium tetrafluoroborate (3226-41-3)

Guidance literature:

With Selectfluor; In acetonitrile; at 80 ℃; for 4h; Green chemistry;

DOI:10.1177/1747519820902670

Reference yield: 85.0%

potassium selenocyanate (3425-46-5) + 4-bromobenzenesulfonyl chloride (98-58-8) → 4-bromobenzenediazonium tetrafluoroborate (3226-41-3)

Guidance literature:

In acetonitrile; at 75 ℃; chemoselective reaction; Inert atmosphere;

DOI:10.1002/ejoc.202101031

Reference yield: 69.0%

trimethylsilyl cyanide (7677-24-9) + (4-bromophenyl)thioanisole (104-95-0) → 4-bromobenzenediazonium tetrafluoroborate (3226-41-3)

Guidance literature:

With Selectfluor; In acetonitrile; at 80 ℃; for 1h; Inert atmosphere;

DOI:10.1021/acs.joc.9b00965

upstream raw materials:

4-thiocyanatoaniline

4-bromo-aniline

trimethylsilyl cyanide

sodium 4-bromobenzenesulfinate

Downstream raw materials:

bis(4-bromophenyl)disulfide

4-bromo-2-nitro-1-thiocyanato-benzene

S-(4-bromophenyl) thiocarbamate

para-bromobenzenethiol

Refernces

• 1、 Kalaramna, Pratibha,Goswami, Avijit. "Temperature-Controlled Chemoselective Synthesis of Thiosulfonates and Thiocyanates: Novel Reactivity of KXCN (X=S, Se) towards Organosulfonyl Chlorides". supporting information. p. 5359 - 5366. Retrieved 2021/10/25.
• 2、 Zhou, Pengpeng,Chen, Chuan,Li, Shubai. "Selectfluor-initiated cyanation of disulfides to thiocyanates". . p. 376 - 380. Retrieved 2020/02/13.