Methyl iodide → 8-chloro-1-[[(methylamino)oxy]methyl]-6-phenyl-4H-s-triazolo[4,3-a][1,4]benzodiazepine

HRID 1679605Notes

Reaction equation

HRID 1679605 reaction equation
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]2[N:11]3[C:12]([CH2:15][O:16][NH2:17])=[N:13][N:14]=[C:10]3[CH2:9][N:8]=[C:7]([C:18]3[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=3)[C:6]=2[CH:24]=1.[H-].[Na+].[CH3:27]I>CN(C)C=O>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]2[N:11]3[C:12]([CH2:15][O:16][NH:17][CH3:27])=[N:13][N:14]=[C:10]3[CH2:9][N:8]=[C:7]([C:18]3[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=3)[C:6]=2[CH:24]=1

Participants

5

Reactant 3

HCID 6328Methyl iodideHCID 24758Sodium hydrideHCID 126124268-chloro-1-[(aminooxy)methyl]6-phenyl-4H-s-triazolo[4,3-a][1,4]benzodiazepine

Product 1

HCID 203612848-chloro-1-[[(methylamino)oxy]methyl]-6-phenyl-4H-s-triazolo[4,3-a][1,4]benzodiazepine

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A stirred solution of 8-chloro-1-[(aminooxy)methyl]-6-phenyl-4H-s-triazolo[4,3-a][1,4]benzodiazepine (0.02 mole) in dry dimethylformamide (50 ml.) is cooled in an ice bath under nitrogen and treated successively with a 57% mineral oil suspension of sodium hydride (0.84 g., 0.02 mole) and methyliodide (0.02 mole). The mixture is allowed to come slowly to ambient temperature and stand for 18 hours. It is then concentrated in vacuo. The residue is chromatographed on silica gel with methanol to give 8-chloro-1-[[(methylamino)oxy]methyl]-6-phenyl-4H-s-triazolo[4,3-a][1,4]benzodiazepine.

Workup

  1. customto come slowly to ambient temperature
  2. concentrationIt is then concentrated in vacuo
  3. customThe residue is chromatographed on silica gel with methanol

Sources & evidence

ORD record
ord-18979b1cb4f447c5af7bd9d39311215c
Source dataset
uspto-grants-1978_03
Patent number
US04081452

Reaction notes

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