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Hydrochloric Acid → HCID 19009010, compound

HRID 1590621
Notes
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Reaction equation

HRID 1590621 reaction equation
[C:1]1([C:7]#[C:8][C:9]2[N:14]=[N:13][C:12]([S:15]([C:18]3[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=3)(=[O:17])=[O:16])=[CH:11][CH:10]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[I-].[NH2:25][N+:26]1[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=1.[OH-].[Na+].Cl>[Cl-].C([N+](C)(C)C)C1C=CC=CC=1.C(Cl)Cl.O>[C:18]1([S:15]([C:12]2[N:13]=[N:14][C:9]([C:8]3[C:7]([C:1]4[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=4)=[N:25][N:26]4[CH:31]=[CH:30][CH:29]=[CH:28][C:27]=34)=[CH:10][CH:11]=2)(=[O:17])=[O:16])[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

8

Reactant 4

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 2733704Pyridinium, 1-amino-, iodide (1:1)HCID 11232442HCID 11232442, compound

Product 1

HCID 19009010HCID 19009010, compoundYield 69.3%

Reagents, catalysts & solvents 3

HCID 5963
Benzyltrimethylammonium chloride
Catalyst
HCID 962WaterSolvent2×
HCID 6344DichloromethaneSolvent

Procedure

A two-phase mixture of 6-(2-phenylethynyl)-3-phenylsulfonylpyridazine (23.3 g), 1-aminopyridinium iodide (90%; 26.9 g), sodium hydroxide (11.6 g), and benzyltrimethylammonium chloride (1.35 g) in a mixture of methylene chloride (233 ml) and water (233 ml) was stirred for 2 hours at room temperature. Water (233 ml) was added to the reaction mixture, and the mixture was acidified with 36% hydrochloric acid (20 ml). The organic layer was separated, washed twice with water and once with sodium chloride aqueous solution, dried over anhydrous magnesium sulfate, and concentrated. The residue was washed with hot ethanol (300 ml) to give 3-(3-phenylsulfonylpyridazin-6-yl)-2-phenylpyrazolo[1,5-a]pyridine (20.8 g). An analytical sample was prepared by recrystallization from ethyl acetate.

Workup

  1. customThe organic layer was separated
  2. washwashed twice with water and once with sodium chloride aqueous solution
  3. dry with materialdried over anhydrous magnesium sulfate
  4. concentrationconcentrated
  5. washThe residue was washed with hot ethanol (300 ml)

Sources & evidence

ORD record
ord-0c0baff14a4449cbb2b8a8692a32c44a
Source dataset
uspto-grants-1993_04
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US05204346

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes