Potassium Nitrate → 2H-3,1-Benzoxazin-2-one, 6-bromo-1,4-dihydro-5-methyl-8-nitro-

HRID 635807Notes

Reaction equation

HRID 635807 reaction equation
[Br:1][C:2]1[CH:12]=[CH:11][C:5]2[NH:6][C:7](=[O:10])[O:8][CH2:9][C:4]=2[C:3]=1[CH3:13].[N+:14]([O-])([O-:16])=[O:15].[K+]>OS(O)(=O)=O>[Br:1][C:2]1[CH:12]=[C:11]([N+:14]([O-:16])=[O:15])[C:5]2[NH:6][C:7](=[O:10])[O:8][CH2:9][C:4]=2[C:3]=1[CH3:13]

Participants

4

Reactant 2

HCID 24434Potassium NitrateHCID 107765166-Bromo-5-methyl-1H-benzo[d][1,3]oxazin-2(4H)-one

Product 1

HCID 107556822H-3,1-Benzoxazin-2-one, 6-bromo-1,4-dihydro-5-methyl-8-nitro-

Reagents, catalysts & solvents 1

HCID 1118Sulfuric AcidSolvent

Procedure

To a solution of 6-bromo-5-methyl-1,4-dihydro-benzo[d][1,3]oxazin-2-one (0.726 g, 3 mmol) in concentrate H2SO4 (4 mL), KNO3 (0.303 g, 3 mmol) was added at 0° C. Reaction mixture stirred 14 hours and poured over crushed ice. Yellow precipitate was obtained, which was filtered and dried.

Workup

  1. customReaction mixture
  2. additionpoured
  3. customover crushed ice
  4. customYellow precipitate was obtained
  5. filtrationwhich was filtered
  6. customdried

Sources & evidence

ORD record
ord-c532a7cb3a34411096b39986f6c8bbbe
Source dataset
uspto-grants-2001_02
Patent number
US06191134B1

Reaction notes

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