Hydrogen Peroxide → HCID 14988433, compound

HRID 1885867Notes

Reaction equation

HRID 1885867 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]2[O:9][CH2:8][CH2:7][N:6]3C(=O)[C:11](=[O:14])[C:12]([CH:13]=1)=[C:5]23.[OH-:16].[Na+].OO>O>[Cl:1][C:2]1[CH:3]=[C:4]2[O:9][CH2:8][CH2:7][NH:6][C:5]2=[C:12]([C:11]([OH:14])=[O:16])[CH:13]=1

Participants

5

Reactant 3

HCID 784Hydrogen PeroxideHCID 14798Sodium HydroxideHCID 13575836HCID 13575836, compound

Product 1

HCID 14988433HCID 14988433, compoundYield 80.5%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

To a stirred suspension of 8-chloro-2,3-dihydropyrrolo[1,2,3-de]-1,4-benzoxazine-5,6-dione (4.47 g) in water (50 ml) was added 2N sodium hydroxide solution (30 ml), and the mixture was stirred to a solution. 30 % hydrogen peroxide solution (20 ml) was added and stirred for an hour, insoluble material was filtered off and then acidified with concentrated hydrochloric acid. The yellow precipitate was collected by filtration, washed with water and dried to yield 3.44 g (80.5%) of the title compound. The compound was recrystallized from benzene (75 ml) to give pale yellow prisms, mp 209°-210 ° C.

Workup

  1. stirringstirred for an hour
  2. filtrationinsoluble material was filtered off
  3. filtrationThe yellow precipitate was collected by filtration
  4. washwashed with water
  5. customdried

Sources & evidence

ORD record
ord-7fa6d1c72d324f579bde52c5a385f4db
Source dataset
uspto-grants-1992_09
Patent number
US05147874

Reaction notes

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