2,5-Bis(2-phenylethenyl)pyrazine

Base Information

• Chemical Name: 2,5-Bis(2-phenylethenyl)pyrazine
• CAS No.: 14990-02-4
• Molecular Formula: C20H16N2
• Molecular Weight: 284.35400
• DSSTox Substance ID: DTXSID30702767
• Mol file: 14990-02-4.mol

Synonyms:2,5-BIS(2-PHENYLETHENYL)PYRAZINE;Pyrazine, 2,5-bis(2-phenylethenyl)-;Pyrazine, 2,5-distyryl-;DTXSID30702767;MUIGGPOKWXIDNO-UHFFFAOYSA-N

Chemical Property of 2,5-Bis(2-phenylethenyl)pyrazine

Chemical Property:

• Melting Point: 218-219 °C(Solv: benzene (71-43-2))
• Boiling Point: 441.3±45.0 °C(Predicted)
• PKA: 1.45±0.10(Predicted)
• PSA: 25.78000
• Density: 1.173±0.06 g/cm3(Predicted)
• LogP: 4.81740
• XLogP3: 4.4
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 4
• Exact Mass: 284.131348519
• Heavy Atom Count: 22
• Complexity: 326

Purity/Quality:

97% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C1=CC=C(C=C1)C=CC2=CN=C(C=N2)C=CC3=CC=CC=C3

Technology Process of 2,5-Bis(2-phenylethenyl)pyrazine

There total 10 articles about 2,5-Bis(2-phenylethenyl)pyrazine 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: 62.0%

2,5-dimethyl-pyrazine (123-32-0) + benzaldehyde (100-52-7) → 2,5-distyrylpyrazine (14990-02-4)

Guidance literature:

at 175 ℃; for 5h; Microwave irradiation;

DOI:10.1007/s10847-019-00904-y

Reference yield: 58.0%

2,5-dimethyl-pyrazine (123-32-0) + benzyl alcohol (100-51-6,185532-71-2) → 2,5-(E,E)-distyrylpyrazine (21899-24-1,14990-02-4)

Guidance literature:

With 1,10-Phenanthroline; potassium tert-butylate; iron(II) acetate; In toluene; at 140 ℃; for 24h; chemoselective reaction; Inert atmosphere;

DOI:10.1021/acs.orglett.9b02793

Reference yield: 41.0%

2,5-dimethyl-pyrazine (123-32-0) + benzyl alcohol (100-51-6,185532-71-2) → 2-methyl-5-styryl-pyrazine (115339-36-1) + 2,5-(E,E)-distyrylpyrazine (21899-24-1,14990-02-4)

Guidance literature:

With manganese(IV) oxide; potassium hydroxide; In tert-Amyl alcohol; at 120 ℃; for 48h; regioselective reaction; Inert atmosphere;

DOI:10.1016/j.tet.2020.130968

upstream raw materials:

2,5-dimethyl-pyrazine

benzaldehyde

(E)-3-Ureido-but-2-enoic acid ethyl ester

2,5-di-trans-styryl-pyrazine-1,4-dioxide

Downstream raw materials:

2,5-pyrazine-dicarboxaldehyde