6,7-Quinoxalinediol

Base Information

• Chemical Name: 6,7-Quinoxalinediol
• CAS No.: 19506-20-8
• Molecular Formula: C₈H₆N₂O₂
• Molecular Weight: 162.148
• Hs Code.: 2933990090
• Mol file: 19506-20-8.mol

Synonyms:6,7-Quinoxalinediol

Chemical Property of 6,7-Quinoxalinediol

Chemical Property:

• PSA: 65.72000
• LogP: 0.21640

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 6,7-Quinoxalinediol

There total 4 articles about 6,7-Quinoxalinediol 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:

1,2-dihydroxy-4,5-dinitrobenzene (77400-30-7) → 6,7-Dihydroxychinoxalin (19506-20-8)

Guidance literature:

With sodium dithionite; water; anschliessend Umsetzung mit dem Dinatrium-Salz der 1,2-Dihydroxy-aethan-1,2-disulfonsaeure nach Zusatz von Essigsaeure;

DOI:10.1021/jo01168a006

Reference yield:

1,2-dimethoxybenzene (91-16-7) → 6,7-Dihydroxychinoxalin (19506-20-8)

Guidance literature:

Multi-step reaction with 3 steps

1: concentrated sulfuric acid / 3 - 5 °C / anschliessendes Erwaermen auf 55-60grad

2: aqueous HBr

3: Na₂S₂O₄; H₂₀ / anschliessend Umsetzung mit dem Dinatrium-Salz der 1,2-Dihydroxy-aethan-1,2-disulfonsaeure nach Zusatz von Essigsaeure

With sodium dithionite; sulfuric acid; water; hydrogen bromide;

DOI:10.1021/jo01168a006

Reference yield:

4,5-dimethoxy-1,2-dinitrobenzene (3395-03-7) → 6,7-Dihydroxychinoxalin (19506-20-8)

Guidance literature:

Multi-step reaction with 2 steps

1: aqueous HBr

2: Na₂S₂O₄; H₂₀ / anschliessend Umsetzung mit dem Dinatrium-Salz der 1,2-Dihydroxy-aethan-1,2-disulfonsaeure nach Zusatz von Essigsaeure

With sodium dithionite; water; hydrogen bromide;

DOI:10.1021/jo01168a006

upstream raw materials:

6,7-Dimethoxyquinoxaline

1,2-dihydroxy-4,5-dinitrobenzene

1,2-dimethoxybenzene

4,5-dimethoxy-1,2-dinitrobenzene