4-Bromobenzo[d]oxazole

Base Information

• Chemical Name: 4-Bromobenzo[d]oxazole
• CAS No.: 217326-65-3
• Molecular Formula: C₇H₄BrNO
• Molecular Weight: 198.019
• Hs Code.: 2934999090
• Mol file: 217326-65-3.mol

Synonyms:Benzoxazole,4-broMo-

Chemical Property of 4-Bromobenzo[d]oxazole

Chemical Property:

• Vapor Pressure: 0.033mmHg at 25°C
• Refractive Index: 1.649
• Boiling Point: 251.2 °C at 760 mmHg
• PKA: -1.90±0.30(Predicted)
• Flash Point: 105.7 °C
• PSA: 26.03000
• Density: 1.71 g/cm³
• LogP: 2.59030
• Storage Temp.: Sealed in dry,Room Temperature

Purity/Quality:

99%, ^*data from raw suppliers

4-Bromobenzo[d]oxazole ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 4-Bromobenzo[d]oxazole

There total 2 articles about 4-Bromobenzo[d]oxazole 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%

2-amino-3-bromophenol (116435-77-9) + trimethyl orthoformate (149-73-5) → 4-bromobenzo[d]-oxazole (217326-65-3)

Guidance literature:

With toluene-4-sulfonic acid; at 100 ℃;

Reference yield: 51.7%

2-amino-3-bromophenol (116435-77-9) + orthoformic acid triethyl ester (122-51-0) → 4-bromobenzo[d]-oxazole (217326-65-3)

Guidance literature:

With pyridine; yttrium(III) trifluoromethanesulfonate; In dimethyl sulfoxide; at 60 ℃; for 18h;

Reference yield: 63.0%

trans-2-phenylvinylboronic acid (6783-05-7) + 4-bromobenzo[d]-oxazole (217326-65-3) → (E)-4-bromo-2-styrylbenzo[d]oxazole

Guidance literature:

With iron(III) chloride; 1,10-Phenanthroline; 1,2-dichloro-2-methylpropane; caesium carbonate; In N,N-dimethyl-formamide; at 100 ℃; for 16h; Sealed tube; Inert atmosphere;

DOI:10.1055/s-0037-1609718

upstream raw materials:

2-amino-3-bromophenol

orthoformic acid triethyl ester

trimethyl orthoformate

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