Phosphorus oxychloride → HCID 19009006, compound

HRID 1742279Notes

Reaction equation

HRID 1742279 reaction equation
P(Cl)(Cl)([Cl:3])=O.[C:6]1([S:12]([C:15]2[CH:16]=[CH:17][C:18](=O)[NH:19][N:20]=2)(=[O:14])=[O:13])[CH:11]=[CH:10][CH:9]=[CH:8][CH:7]=1>>[Cl:3][C:18]1[N:19]=[N:20][C:15]([S:12]([C:6]2[CH:11]=[CH:10][CH:9]=[CH:8][CH:7]=2)(=[O:14])=[O:13])=[CH:16][CH:17]=1

Participants

3

Reactant 2

HCID 24813Phosphorus oxychlorideHCID 11701437141060-78-8

Product 1

HCID 19009006HCID 19009006, compound

Procedure

To stirring phosphorous oxychloride (87 ml) at 80° C. was added four 2.0 g portions of 6-phenylsulfonyl-3-oxo-2,3-dihydropyridazine every 30 minutes. After additional two 1.0 g portions were added with stirring, the reaction mixture was slowly poured into ice-water over 1 hour to form the precipitate, which was collected, washed well with water, and dried to give 6-chloro-3-phenylsulfonylpyridazine (8.4 g).

Workup

  1. customto form the precipitate, which
  2. customwas collected
  3. washwashed well with water
  4. customdried

Sources & evidence

ORD record
ord-54bac4e5143f4a2c915f951d18693012
Source dataset
uspto-grants-1994_08
Patent number
US05338743

Reaction notes

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