HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrogen Bromide → 1,3-Di-n-butyl-8-bromo Xanthine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrogen Bromide | HCID 260 | — |
| Reactant | 1,3-Di-n-butyl-8-nitro Xanthine | HCID 9944475 | — |
| Product | 1,3-Di-n-butyl-8-bromo Xanthine | HCID 10154489 | — |
Reaction Steps
1,3-Di-n-butyl-8-bromo xanthine was prepared from 1,3-di-n-butyl-8-nitro xanthine (0.5 g, 0.0016 mol) and concentrated hydrobromic acid (8 ml) using the procedure as described in Example 15. The title product was obtained after recrystallisation from ethanol, yield 0.4 g (91%), m.pt. 178° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05734051 |
| Source dataset | uspto-grants-1998_03 |
| ORD ID | ord-38d4d17186b6440b9a7304522d7693ad |
| Source note | uspto-grants-1998_03 |