Hydrazine hydrate (1:1) → HCID 86653142, compound

HRID 1258591Notes

Reaction equation

HRID 1258591 reaction equation
[CH3:1][S:2][C:3]1[CH:4]=[C:5]([C:9](=[N:16][O:17][CH2:18][C:19]2[N:24]=[C:23]([N:25]3C(=O)C4C(=CC=CC=4)C3=O)[CH:22]=[CH:21][CH:20]=2)[C:10]2[N:14]([CH3:15])[N:13]=[N:12][N:11]=2)[CH:6]=[CH:7][CH:8]=1.O.NN>C1COCC1>[CH3:1][S:2][C:3]1[CH:4]=[C:5]([C:9](=[N:16][O:17][CH2:18][C:19]2[N:24]=[C:23]([NH2:25])[CH:22]=[CH:21][CH:20]=2)[C:10]2[N:14]([CH3:15])[N:13]=[N:12][N:11]=2)[CH:6]=[CH:7][CH:8]=1

Participants

4

Reactant 2

HCID 24654Hydrazine hydrate (1:1)HCID 86653143HCID 86653143, compound

Product 1

HCID 86653142HCID 86653142, compoundYield 77%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a stirred solution of 2-(6-{[({[3-(methylsulfanyl)phenyl](1-methyl-1H-tetrazol-5-yl)methylene}amino)oxy]methyl}pyridin-2-yl)-1H-isoindole-1,3(2H)-dione (2.79 g, 5.75 mmol) in dry THF (70 mL) was added hydrazine hydrate (1.44 g, 28.7 mmol). The reaction mixture was stirred at room temperature for 4 h, then insolubles were removed by filtration and washed with dichloromethane. The filtrates were combined and concentrated in vacuo. The residue was dissolved in dichloromethane (100 mL), washed with water (50 mL), and the organic layer was dried over MgSO4 and concentrated in vacuo to afford 6-{[({[3-(methylsulfanyl)phenyl](1-methyl-1H-tetrazol-5-yl)methylene}amino)oxy]methyl}pyridin-2-amine as a white solid [1.63 g, yield 77%; HPLC/MS: m/z=356 (M+H); logP(HCOOH)=1.42].

Workup

  1. custominsolubles were removed by filtration
  2. washwashed with dichloromethane
  3. concentrationconcentrated in vacuo
  4. dissolutionThe residue was dissolved in dichloromethane (100 mL)
  5. washwashed with water (50 mL)
  6. dry with materialthe organic layer was dried over MgSO4
  7. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-55fddc965d1b401686888646d7eb600d
Source dataset
uspto-grants-2013_06
Patent number
US08466176B2

Reaction notes

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