5H-[1]benzopyrano[2,3-b]pyridine

Base Information

• Chemical Name: 5H-[1]benzopyrano[2,3-b]pyridine
• CAS No.: 261-27-8
• Molecular Formula: C12H9NO
• Molecular Weight: 183.21
• European Community (EC) Number: 859-359-4
• DSSTox Substance ID: DTXSID50483581
• Nikkaji Number: J1.272.613I
• Wikidata: Q82320998
• Mol file: 261-27-8.mol

Synonyms:5H-[1]benzopyrano[2,3-b]pyridine;261-27-8;5H-chromeno[2,3-b]pyridine;5H-[1]-benzopyrano[2,3-b]pyridine;MFCD11558949;chromeno[2,3-b]pyridine;SCHEMBL1648508;DTXSID50483581;MXIYRNSRKGMBLQ-UHFFFAOYSA-N;AKOS006318583;AS-61145;SY113519;CS-0197092;FT-0655047;A12359;EN300-8586225;A818192

Chemical Property of 5H-[1]benzopyrano[2,3-b]pyridine

Chemical Property:

• Vapor Pressure: 0.000171mmHg at 25°C
• Melting Point: 87-88 °C(Solv: carbon tetrachloride (56-23-5))
• Boiling Point: 340.3ºC at 760 mmHg
• PKA: 2.71±0.20(Predicted)
• Flash Point: 124.5ºC
• PSA: 22.12000
• Density: 1.218g/cm3
• LogP: 2.77810
• XLogP3: 2.7
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 0
• Exact Mass: 183.068413911
• Heavy Atom Count: 14
• Complexity: 207

Purity/Quality:

98%,99%, ^*data from raw suppliers

5H-Chromeno[2,3-b]pyridine 97% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C1C2=C(N=CC=C2)OC3=CC=CC=C31

Technology Process of 5H-[1]benzopyrano[2,3-b]pyridine

There total 3 articles about 5H-[1]benzopyrano[2,3-b]pyridine 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:

5-Bromo-2-chloropyrimidine (32779-36-5) + o-Allylphenol (1745-81-9) → 5H-[1]-chromeno[2,3-b]pyridine (261-27-8)

Guidance literature:

With potassium carbonate; at 150 ℃;

Reference yield:

2-(2-allyl-phenoxy)-5-bromo-pyrimidine (70704-72-2) → 5H-[1]-chromeno[2,3-b]pyridine (261-27-8)

Guidance literature:

With N,N-diethylaniline; Heating;

Reference yield:

→ 5H-[1]-chromeno[2,3-b]pyridine (261-27-8)

Guidance literature:

aus d. 5-Hydroxy-Verb.;

upstream raw materials:

5-Bromo-2-chloropyrimidine

o-Allylphenol

2-(2-allyl-phenoxy)-5-bromo-pyrimidine

Downstream raw materials:

2-(5h-[1]benzopyrano[2,3-b]pyridin-7-yl)propionic acid

Refernces