Water → HCID 178514932, compound

HRID 1199730Notes

Reaction equation

HRID 1199730 reaction equation
N[C:2]1[CH:15]=[CH:14][C:13]2[O:12][C:11]3[C:6](=[CH:7][CH:8]=[C:9]([C:16]4[NH:20][N:19]=[N:18][N:17]=4)[CH:10]=3)[C:5](=[O:21])[C:4]=2[CH:3]=1.N([O-])=[O:23].[Na+].O>S(=O)(=O)(O)O>[OH:23][C:2]1[CH:15]=[CH:14][C:13]2[O:12][C:11]3[C:6](=[CH:7][CH:8]=[C:9]([C:16]4[NH:20][N:19]=[N:18][N:17]=4)[CH:10]=3)[C:5](=[O:21])[C:4]=2[CH:3]=1

Participants

5

Reactant 3

HCID 962WaterHCID 23668193Sodium NitriteHCID 178507371HCID 178507371, compound

Product 1

HCID 178514932HCID 178514932, compound

Reagents, catalysts & solvents 1

HCID 1118Sulfuric AcidSolvent

Conditions

Temperature
15 °C

Procedure

The aminoxanthone from step (C) (14.4 g) was dissolved in concentrated sulphuric acid (250 ml) and to the stirred solution at 10°-15° C. was added in portions sodium nitrite (3.6 g). The solution was then stirred at 15° C. for 1 hr, poured on to ice (2 kg) and water (2.5 l). The mixture was slowly brought to the broil and boiled under reflux for 1 hr. The resulting yellow product was filtered off, washed well with water and dried.

Workup

  1. temperatureunder reflux for 1 hr
  2. filtrationThe resulting yellow product was filtered off
  3. washwashed well with water
  4. customdried

Sources & evidence

ORD record
ord-9701b9b4064a4d1082b62f7de535a177
Source dataset
uspto-grants-1990_02
Patent number
US04902701

Reaction notes

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