2-Thiopheneglyoxylic acid → HCID 21083647, compound

HRID 347709Notes

Reaction equation

HRID 347709 reaction equation
[NH2:1][C:2]1[CH:3]=[C:4]([S:9]([OH:12])(=[O:11])=[O:10])[CH:5]=[CH:6][C:7]=1[NH2:8].[S:13]1[CH:17]=[CH:16][CH:15]=[C:14]1[C:18](=O)[C:19](O)=[O:20]>>[O:20]=[C:19]1[C:18]([C:14]2[S:13][CH:17]=[CH:16][CH:15]=2)=[N:1][C:2]2[C:7](=[CH:6][CH:5]=[C:4]([S:9]([OH:12])(=[O:10])=[O:11])[CH:3]=2)[NH:8]1

Participants

3

Reactant 2

HCID 776942-Thiopheneglyoxylic acidHCID 81986Benzenesulfonic acid, 3,4-diamino-

Product 1

HCID 21083647HCID 21083647, compound

Procedure

The quinoxalin-2-one of the present example is prepared with 3,4-Diamino-benzenesulfonic acid and (thiophen-2-yl) oxo-acetic acid via the method described in Example 12 to afford 2-Oxo-3-thiophen-2-yl-1,2-dihydro-quinoxaline-6-sulfonic acid.

Sources & evidence

ORD record
ord-8dc7db07fa874b3a817c211ee15db47e
Source dataset
uspto-grants-2007_02
Patent number
US07176208B2

Reaction notes

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