Chlorosulfonic acid → HCID 178510521, compound

HRID 1651284Notes

Reaction equation

HRID 1651284 reaction equation
[C:1]([C:3]1[C:4]([OH:14])=[N:5][C:6]2[C:11]([C:12]=1[OH:13])=[CH:10][CH:9]=[CH:8][CH:7]=2)#[N:2].Cl[S:16]([OH:19])(=[O:18])=[O:17]>>[C:1]([C:3]1[C:4]([OH:14])=[N:5][C:6]2[C:11]([C:12]=1[OH:13])=[CH:10][C:9]([S:16]([OH:19])(=[O:18])=[O:17])=[CH:8][CH:7]=2)#[N:2]

Participants

3

Reactant 2

HCID 24638Chlorosulfonic acidHCID 178510517HCID 178510517, compound

Product 1

HCID 178510521HCID 178510521, compound

Conditions

Temperature
80 °C

Procedure

280 parts of 3-cyano-2,4-dihydroxyquinoline were introduced into 1,000 parts of chlorosulfonic acid. This was followed by stirring at 80° C. for 5 hours, cooling down, pouring onto ice-water, filtering off with suction and washing with water. The crude product obtained after drying need not be purified for chlorination.

Workup

  1. temperaturecooling down
  2. additionpouring onto ice-water
  3. filtrationfiltering off with suction
  4. washwashing with water

Sources & evidence

ORD record
ord-db426a22a49540b6aedd83e66dbc91de
Source dataset
uspto-grants-1990_05
Patent number
US04927935

Reaction notes

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