5-Methoxybenzo[b]thiophene-2-boronic acid

Base Information

• Chemical Name: 5-Methoxybenzo[b]thiophene-2-boronic acid
• CAS No.: 193965-30-9
• Molecular Formula: C9H9BO3S
• Molecular Weight: 208.046
• Hs Code.: 2934999090
• Mol file: 193965-30-9.mol

Synonyms:Boronic acid, B-(5-methoxybenzo[b]thien-2-yl)-;

Chemical Property of 5-Methoxybenzo[b]thiophene-2-boronic acid

Chemical Property:

• Vapor Pressure: 6.51E-08mmHg at 25°C
• Refractive Index: 1.64
• Boiling Point: 423.1 °C at 760 mmHg
• Flash Point: 209.7 °C
• PSA: 77.93000
• Density: 1.35 g/cm³
• LogP: 0.58970
• Storage Temp.: 2-8°C

Purity/Quality:

98%min ^*data from raw suppliers

5-Methoxybenzo[b]thiophene-2-boronicAcid ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Uses: 5-Methoxybenzo[b]thiophene-2-boronic acid acts as a reagent in the synthesis of dibasic benzo[b]thiophene derivatives as a novel class of active site directed thrombin inhibitors in relation to structure-activity studies on conformationally restricted C3-side chain.

Technology Process of 5-Methoxybenzo[b]thiophene-2-boronic acid

There total 2 articles about 5-Methoxybenzo[b]thiophene-2-boronic acid 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: 100.0%

5-methoxybenzothiophene (20532-30-3) → 5-methoxybenzo[b]thiophen-2-yl-2-boronic acid (193965-30-9)

Guidance literature:

5-methoxybenzothiophene; With n-butyllithium; N,N,N,N,-tetramethylethylenediamine; In tetrahydrofuran; at -40 - -30 ℃; for 1.25h;

With Trimethyl borate; In tetrahydrofuran; at -30 - 20 ℃;

With hydrogenchloride; In tetrahydrofuran; water;

Reference yield: 58.0%

→ 5-methoxybenzo[b]thiophen-2-yl-2-boronic acid (193965-30-9)

Guidance literature:

With n-butyllithium; In tetrahydrofuran; at -68 - 20 ℃; for 3h;

Reference yield: 47.0%

1-[2-(4-bromophenoxy)ethyl]pyrrolidine (1081-73-8) + 5-methoxybenzo[b]thiophen-2-yl-2-boronic acid (193965-30-9) → 5-methoxy-2-[4-[2-(1-pyrrolidinyl)ethoxy]phenyl]benzo[b]thiophene (193965-31-0)

Guidance literature:

upstream raw materials:

5-methoxybenzothiophene

Downstream raw materials:

5-methoxy-2-[4-[2-(1-pyrrolidinyl)ethoxy]phenyl]benzo[b]thiophene

ethyl 3-(5-methyloxy-1-benzothien-2-yl)benzoate

ethyl 4-(5-methyloxy-1-benzothien-2-yl)benzoate

4-Fluorophenyl 5-Methoxy-2-[4-[2-(1-pyrrolidinyl)ethoxy]phenyl]benzo[b]thiophen-3-yl Ketone

Refernces

• 1、 -. "FARNESOID X RECEPTOR AGONISTS". Page/Page column 130. . Retrieved 2009/03/07.
• 2、 -. "Antithrombotic diamines". . . Retrieved 2012/10/23.