1,4-Dibromo-2,3-butanedione → 2,3-Bis(bromomethyl)-6,7-dichloro-quinoxaline

HRID 892414

Reaction equation

HRID 892414 reaction equation
[Br:1][CH2:2][C:3](=O)[C:4](=O)[CH2:5][Br:6].[NH2:9][C:10]1[CH:15]=[C:14]([Cl:16])[C:13]([Cl:17])=[CH:12][C:11]=1[NH2:18]>>[Br:1][CH2:2][C:3]1[C:4]([CH2:5][Br:6])=[N:9][C:10]2[C:11](=[CH:12][C:13]([Cl:17])=[C:14]([Cl:16])[CH:15]=2)[N:18]=1

Participants

3

Reactant 2

HCID 227471,4-Dibromo-2,3-butanedioneHCID 792974,5-Dichloro-1,2-phenylenediamine

Product 1

HCID 117407702,3-Bis(bromomethyl)-6,7-dichloro-quinoxaline

Procedure

Following the procedure of Example 1, condensation of 1,4-dibromo-2,3-butanedione with 1,2-diamino-4,5-dichlorobenzene yielded 2,3-bis(bromomethyl)-6,7-dichloro-quinoxaline, m.p. 154°-156° C.; 1H NMR (CDCl3, 200 MHz): δ4.86 (s, 4H, CH2), 8.18 (s, 2H, ArH).

Sources & evidence

ORD record
ord-db9b54d30a2d4c06b7ca82ce51f8a1b4
Source dataset
uspto-grants-1992_06
Patent number
US05118675

Linked notes

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