2,8-Dichloroquinoxaline

Base Information

• Chemical Name: 2,8-Dichloroquinoxaline
• CAS No.: 120258-69-7
• Molecular Formula: C8H4Cl2N2
• Molecular Weight: 199.0368
• Hs Code.: 2933990090
• DSSTox Substance ID: DTXSID90442399
• Wikidata: Q82259653
• Mol file: 120258-69-7.mol

Synonyms:2,8-dichloroquinoxaline;120258-69-7;2,8-dichloro-quinoxaline;Quinoxaline, 2,8-dichloro-;SCHEMBL9078330;DTXSID90442399;OSJZMZFNSNCFCO-UHFFFAOYSA-N;CS-B0990;MFCD11846471;AKOS015851079;DS-0529;AM20070304;A892286

Chemical Property of 2,8-Dichloroquinoxaline

Chemical Property:

• Vapor Pressure: 0.007mmHg at 25°C
• Melting Point: 190-195 °C
• Refractive Index: 1.671
• Boiling Point: 279.205°C at 760 mmHg
• PKA: -2.42±0.30(Predicted)
• Flash Point: 149.44°C
• PSA: 25.78000
• Density: 1.487g/cm³
• LogP: 2.93660
• Storage Temp.: 2-8°C
• XLogP3: 2.7
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 0
• Exact Mass: 197.9751535
• Heavy Atom Count: 12
• Complexity: 165

Purity/Quality:

99% ^*data from raw suppliers

2,8-Dichloroquinoxaline ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C1=CC2=NC=C(N=C2C(=C1)Cl)Cl

Technology Process of 2,8-Dichloroquinoxaline

There total 5 articles about 2,8-Dichloroquinoxaline 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: 92.0%

8-chloro-2-quinoxalinol (65180-12-3) → 2,8-dichloroquinoxaline (120258-69-7)

Guidance literature:

With trichlorophosphate; for 1h; Heating;

DOI:10.1021/jm0005149

Reference yield:

3-chloro-2-nitro-aniline (59483-54-4) → 2,8-dichloroquinoxaline (120258-69-7)

Guidance literature:

Multi-step reaction with 4 steps

1: 6 percent / 1 h / 125 °C

2: H₂ / 10percent Pd/C / methanol / 6 h / 1551.49 Torr

3: 3percent aq. H₂O₂; aq. NaOH / 1 h / Heating

4: 92 percent / POCl₃ / 1 h / Heating

With sodium hydroxide; hydrogen; trichlorophosphate; 10percent Pd/C; In methanol;

DOI:10.1021/jm0005149

Reference yield:

N-(3-chloro-2-nitrophenyl)glycine (347162-14-5) → 2,8-dichloroquinoxaline (120258-69-7)

Guidance literature:

Multi-step reaction with 3 steps

1: H₂ / 10percent Pd/C / methanol / 6 h / 1551.49 Torr

2: 3percent aq. H₂O₂; aq. NaOH / 1 h / Heating

3: 92 percent / POCl₃ / 1 h / Heating

With sodium hydroxide; hydrogen; trichlorophosphate; 10percent Pd/C; In methanol;

DOI:10.1021/jm0005149

upstream raw materials:

8-chloro-2-quinoxalinol

3-chloro-2-nitro-aniline

N-(3-chloro-2-nitrophenyl)glycine

Downstream raw materials:

2-[4-(8-chloro-quinoxalin-2-yloxy)-phenoxy]-propionic acid methyl ester

Refernces

• 1、 -. "Antitumor compositions and methods of treatment". . . Retrieved 2008/06/13.