Ethyl 6-chloro-3-oxo-3,4-dihydroquinoxaline-2-carboxylate → HCID 22917178, compound

HRID 1973363Notes

Reaction equation

HRID 1973363 reaction equation
[Cl:1][C:2]1[C:3]([C:13]([O:15][CH2:16][CH3:17])=[O:14])=[N:4][C:5]2[C:10]([N:11]=1)=[CH:9][C:8](Cl)=[CH:7][CH:6]=2.ClC1C=C2C(=CC=1)N=C([C:29](OCC)=[O:30])C(=O)N2>>[Cl:1][C:2]1[C:3]([C:13]([O:15][CH2:16][CH3:17])=[O:14])=[N:4][C:5]2[C:10]([N:11]=1)=[CH:9][C:8]([O:30][CH3:29])=[CH:7][CH:6]=2

Participants

3

Reactant 2

HCID 10538791Ethyl 6-chloro-3-oxo-3,4-dihydroquinoxaline-2-carboxylateHCID 86734251HCID 86734251, compound

Product 1

HCID 22917178HCID 22917178, compound

Procedure

In a similar manner, 3,6-dichloro-2-quinoxalinecarboxylic acid, ethyl ester, m.p. 63°-65°, was prepared from 6-chloro-3,4-dihydro-3-oxo-2-quinoxalinecarboxylic acid, ethyl ester (Example 12a) (73%).

Sources & evidence

ORD record
ord-d1f08fb307434ef4b828da127a9a9c39
Source dataset
uspto-grants-1976_12
Patent number
US03997535

Reaction notes

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