Piperazine → HCID 58182721, compound

HRID 2191550Notes

Reaction equation

HRID 2191550 reaction equation
Cl[C:2]1[N:6]=[C:5]([C:7]2[CH:12]=[CH:11][CH:10]=[CH:9][C:8]=2[O:13][CH3:14])[S:4][N:3]=1.[NH:15]1[CH2:20][CH2:19][NH:18][CH2:17][CH2:16]1.CN(C=O)C>O>[CH3:14][O:13][C:8]1[CH:9]=[CH:10][CH:11]=[CH:12][C:7]=1[C:5]1[S:4][N:3]=[C:2]([N:15]2[CH2:20][CH2:19][NH:18][CH2:17][CH2:16]2)[N:6]=1

Participants

5

Reactant 3

HCID 4837PiperazineHCID 6228DimethylformamideHCID 58182736HCID 58182736, compound

Product 1

HCID 58182721HCID 58182721, compound

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
150 °C

Procedure

A mixture of 3-chloro-5-(2-methoxyphenyl)-1,2,4-thiadiazole (0.21 g, 0.93 mmol), piperazine (400 mg, 4.65 mmol), and DMF (3 mL) was sealed in a microwave vessel and heated by microwave irradiation at 150° C. for 5 minutes. The reaction was cooled to room temperature, diluted with water, and extracted with CH2Cl2. The combined extracts were washed with water, dried over Na2SO4, and concentrated under reduced pressure to yield 1-(5-(2-methoxyphenyl)-1,2,4-thiadiazol-3-yl)piperazine. LC/MS: m/z 277.1 (M+H)+ at 2.19 min (10%-99% CH3CN (0.035% TFA)/H2O (0.05% TFA)).

Workup

  1. customwas sealed in a microwave vessel
  2. temperatureThe reaction was cooled to room temperature
  3. extractionextracted with CH2Cl2
  4. washThe combined extracts were washed with water
  5. dry with materialdried over Na2SO4
  6. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-ebd55be794834a17a948c70440209a2f
Source dataset
uspto-grants-2012_12
Patent number
US08329702B2

Reaction notes

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