Dichloromethane → 1-(3-(6-tert-butyl-8-fluoro-1-oxophthalazin-2(1H)-yl)-2-(hydroxymethyl)phenyl)-1H-pyrazole-3-carbonitrile

HRID 1025611Notes

Reaction equation

HRID 1025611 reaction equation
[C:1]([C:5]1[CH:6]=[C:7]2[C:12](=[C:13]([F:15])[CH:14]=1)[C:11](=[O:16])[N:10]([C:17]1[C:18]([CH:30]=[O:31])=[C:19]([N:23]3[CH:27]=[CH:26][C:25]([C:28]#[N:29])=[N:24]3)[CH:20]=[CH:21][CH:22]=1)[N:9]=[CH:8]2)([CH3:4])([CH3:3])[CH3:2].[BH4-].[Na+].C(Cl)Cl.[NH4+].[Cl-]>CO>[C:1]([C:5]1[CH:6]=[C:7]2[C:12](=[C:13]([F:15])[CH:14]=1)[C:11](=[O:16])[N:10]([C:17]1[C:18]([CH2:30][OH:31])=[C:19]([N:23]3[CH:27]=[CH:26][C:25]([C:28]#[N:29])=[N:24]3)[CH:20]=[CH:21][CH:22]=1)[N:9]=[CH:8]2)([CH3:4])([CH3:2])[CH3:3]

Participants

6

Reactant 4

HCID 6344DichloromethaneHCID 25517Ammonium ChlorideHCID 4311764Sodium borohydrideHCID 866737211-(3-(6-tert-butyl-8-fluoro-1-oxophthalazin-2(1H)-yl)-2-formylphenyl)-1H-pyrazole-3-carbonitrile

Product 1

HCID 710080791-(3-(6-tert-butyl-8-fluoro-1-oxophthalazin-2(1H)-yl)-2-(hydroxymethyl)phenyl)-1H-pyrazole-3-carbonitrileYield 99%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

In a 25 mL container, 1-(3-(6-tert-butyl-8-fluoro-1-oxophthalazin-2(1H)-yl)-2-formylphenyl)-1H-pyrazole-3-carbonitrile (18 mg, 43.3 μmol, Eq: 1.00), sodium borohydride (6.56 mg, 173 μmol, Eq: 4) were combined with CH2Cl2 (2 mL) and MeOH (1 mL) to give a white suspension. The mixture was stirred for 1 hr. The reaction mixture was poured into 25 mL sat NH4Cl and extracted with EtOAc (3×25 mL). The organic layers were dried over MgSO4 and concentrated in vacuo. The organic layer was concentrated to give 1-(3-(6-tert-butyl-8-fluoro-1-oxophthalazin-2(1H)-yl)-2-(hydroxymethyl)phenyl)-1H-pyrazole-3-carbonitrile (16 mg, 99%) of white product.

Workup

  1. customto give a white suspension
  2. additionThe reaction mixture was poured into 25 mL
  3. extractionextracted with EtOAc (3×25 mL)
  4. dry with materialThe organic layers were dried over MgSO4
  5. concentrationconcentrated in vacuo
  6. concentrationThe organic layer was concentrated

Sources & evidence

ORD record
ord-f4b998d3d5374adcb3e47fad856c8cfe
Source dataset
uspto-grants-2014_05
Patent number
US08729078B2

Reaction notes

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