Reaktion #3730

ord-38d4d17186b6440b9a7304522d7693ad

Reaktionsbedingungen

Detaillierte Bedingungen
See reaction.notes.procedure_details.

Vorschrift

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.

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US05734051uspto-grants-1998_03