HuagongsheHuagongshe Chemistry Print Report · For research reference only
1,4-Dibromo-2,3-butanedione → 2,3-Bis(bromomethyl)-6,7-dichloro-quinoxaline
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 1,4-Dibromo-2,3-butanedione | HCID 22747 | — |
| Reactant | 4,5-Dichloro-1,2-phenylenediamine | HCID 79297 | — |
| Product | 2,3-Bis(bromomethyl)-6,7-dichloro-quinoxaline | HCID 11740770 | — |
Reaction Steps
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).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05118675 |
| Source dataset | uspto-grants-1992_06 |
| ORD ID | ord-db9b54d30a2d4c06b7ca82ce51f8a1b4 |
| Source note | uspto-grants-1992_06 |