3-bromo-5-pyridin-3-ylethynyl-benzoic acid 2-[2-(2-methoxy-ethoxy)-ethoxy]-ethyl ester

Base Information

• Chemical Name: 3-bromo-5-pyridin-3-ylethynyl-benzoic acid 2-[2-(2-methoxy-ethoxy)-ethoxy]-ethyl ester
• CAS No.: 852332-28-6
• Molecular Formula: C₂₁H₂₂BrNO₅
• Molecular Weight: 448.313
• Mol file: 852332-28-6.mol

Synonyms:3-bromo-5-pyridin-3-ylethynyl-benzoic acid 2-[2-(2-methoxy-ethoxy)-ethoxy]-ethyl ester

Chemical Property of 3-bromo-5-pyridin-3-ylethynyl-benzoic acid 2-[2-(2-methoxy-ethoxy)-ethoxy]-ethyl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 3-bromo-5-pyridin-3-ylethynyl-benzoic acid 2-[2-(2-methoxy-ethoxy)-ethoxy]-ethyl ester

There total 1 articles about 3-bromo-5-pyridin-3-ylethynyl-benzoic acid 2-[2-(2-methoxy-ethoxy)-ethoxy]-ethyl ester 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: 61.0%

3-Ethynylpyridine (2510-23-8) + 2-[2-(2-methoxyethoxy)ethoxy]ethyl 3-bromo-5-iodo-benzoate (223774-17-2) → 3-bromo-5-pyridin-3-ylethynyl-benzoic acid 2-[2-(2-methoxy-ethoxy)-ethoxy]-ethyl ester (852332-28-6)

Guidance literature:

With tris-(dibenzylideneacetone)dipalladium⁽⁰⁾; copper(l) iodide; triphenylphosphine; triethylamine; at 50 ℃; for 12h;

DOI:10.1021/ja050713n

Reference yield: 97.0%

3-bromo-5-pyridin-3-ylethynyl-benzoic acid 2-[2-(2-methoxy-ethoxy)-ethoxy]-ethyl ester (852332-28-6) + trimethylsilylacetylene (1066-54-2) → 3-ethynylpyridine-(C6H3(COO-Tg)-trimethylsilyl (852332-23-1)

Guidance literature:

With tris-(dibenzylideneacetone)dipalladium⁽⁰⁾; copper(l) iodide; triphenylphosphine; triethylamine; at 80 ℃; for 18h;

DOI:10.1021/ja050713n

Reference yield:

3-bromo-5-pyridin-3-ylethynyl-benzoic acid 2-[2-(2-methoxy-ethoxy)-ethoxy]-ethyl ester (852332-28-6) → 3-ethynyl-5-pyridin-3-ylethynyl-benzoic acid 2-[2-(2-methoxy-ethoxy)-ethoxy]-ethyl ester (852332-29-7)

Guidance literature:

Multi-step reaction with 2 steps

1: 97 percent / tris(dibenzylideneacetone)dipalladium; copper iodide; triphenylphosphine / triethylamine / 18 h / 80 °C

2: 81 percent / tetrabutylammonium fluoride / tetrahydrofuran / 0.08 h

With tris-(dibenzylideneacetone)dipalladium⁽⁰⁾; copper(l) iodide; tetrabutyl ammonium fluoride; triphenylphosphine; triethylamine; In tetrahydrofuran; 1: Sonogashira coupling;

DOI:10.1021/ja050713n

upstream raw materials:

3-Ethynylpyridine

2-[2-(2-methoxyethoxy)ethoxy]ethyl 3-bromo-5-iodo-benzoate

Downstream raw materials:

3-ethynylpyridine-(C₆H₃(COO-Tg)-trimethylsilyl

3-ethynyl-5-pyridin-3-ylethynyl-benzoic acid 2-[2-(2-methoxy-ethoxy)-ethoxy]-ethyl ester

C₅₅H₅₉NO₁₅

3-ethynylpyridine-((C₆H₃(COO-Tg)-CC)3-trimethylsilyl