6,7-dichloroquinoline-5,8-dione synthesis
- Product Name:6,7-dichloroquinoline-5,8-dione
- CAS Number:6541-19-1
- Molecular formula:C9H3Cl2NO2
- Molecular Weight:228.03
21302-43-2
124 suppliers
$40.00/1g
6541-19-1
41 suppliers
inquiry
Yield:6541-19-1 90%
Reaction Conditions:
with hydrogenchloride;sodium chlorate at 50 - 60; for 0.5 h;
Steps:
3 EXAMPLE 3, 6,7-dichloro-5,8-quinolindion of Formula 2
EXAMPLE 3 6,7-dichloro-5,8-quinolindion of Formula 2 After addition of 5-amino-8-hydroxyquinoline dihydrochloride (9 g) to hydrochloric acid (81 g), the reaction mixture was heated to 60° C. and NaClO3 (4.5 g) was added. The reaction mixture was stirred for 30 min at 50-60° C., filtered and recrystallized twice with buthanol to give yellow precipitate of 6,7-dichloro-5,8-quinolindion (90%).
References:
Il Jin Copper Foil Corp. US6818653, 2004, B1 Location in patent:Page column 5
148-24-3
864 suppliers
$5.00/25g
6541-19-1
41 suppliers
inquiry
611-34-7
309 suppliers
$6.00/1g
6541-19-1
41 suppliers
inquiry
63450-86-2
1 suppliers
inquiry
6541-19-1
41 suppliers
inquiry
13207-66-4
84 suppliers
$65.00/50mg
6541-19-1
41 suppliers
inquiry