1-Methylpiperazine → HCID 10804130, compound

HRID 984088Notes

Reaction equation

HRID 984088 reaction equation
[Cl:1][C:2]1[C:3]([CH3:13])=[C:4]([Cl:12])[C:5]2[O:9][C:8](S)=[N:7][C:6]=2[CH:11]=1.[CH3:14][N:15]1[CH2:20][CH2:19][NH:18][CH2:17][CH2:16]1>C(Cl)(Cl)Cl>[Cl:1][C:2]1[C:3]([CH3:13])=[C:4]([Cl:12])[C:5]2[O:9][C:8]([N:18]3[CH2:19][CH2:20][N:15]([CH3:14])[CH2:16][CH2:17]3)=[N:7][C:6]=2[CH:11]=1

Participants

4

Reactant 2

HCID 531671-MethylpiperazineHCID 178427899HCID 178427899, compound

Product 1

HCID 10804130HCID 10804130, compound

Reagents, catalysts & solvents 1

HCID 6212ChloroformSolvent

Procedure

5,7-Dichloro-6-methyl-2-mercaptobenzoxazole (200 mg) was dissolved in chloroform (20 ml), N-methylpiperazine (0.94 ml) was added dropwise to the solution and then the mixture was stirred with heating for 29 hours. After evaporation of the solvent, the thus obtained mixture was purified by a silica gel column chromatography (methylene chloride:methanol=20:1) to obtain the title compound 5,7-dichloro-6-methyl-2-(4-methyl-1-piperazinyl)benzoxazole (163 mg).

Workup

  1. temperaturewith heating for 29 hours
  2. customAfter evaporation of the solvent
  3. customthe thus obtained mixture was purified by a silica gel column chromatography (methylene chloride:methanol=20:1)

Sources & evidence

ORD record
ord-0d8a41e273dc442e9393305d5d3eaeb9
Source dataset
uspto-grants-2005_03
Patent number
US06867226B2

Reaction notes

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