Tert-butyl 4-(4-chloro-1,2,5-thiadiazol-3-yl)piperazine-1-carboxylate → 1-(4-Chloro-[1,2,5]thiadiazol-3-yl)piperazine hydrochloride

HRID 907542

Reaction equation

HRID 907542 reaction equation
C(OC([N:8]1[CH2:13][CH2:12][N:11]([C:14]2[C:18]([Cl:19])=[N:17][S:16][N:15]=2)[CH2:10][CH2:9]1)=O)(C)(C)C>Cl.O1CCOCC1>[ClH:19].[Cl:19][C:18]1[C:14]([N:11]2[CH2:10][CH2:9][NH:8][CH2:13][CH2:12]2)=[N:15][S:16][N:17]=1

Participants

4

Reactant 1

HCID 15524001Tert-butyl 4-(4-chloro-1,2,5-thiadiazol-3-yl)piperazine-1-carboxylate

Product 1

HCID 212020421-(4-Chloro-[1,2,5]thiadiazol-3-yl)piperazine hydrochlorideYield 191.2%

Reagents, catalysts & solvents 2

HCID 313Hydrochloric AcidSolventHCID 312751,4-DioxaneSolvent

Procedure

4-(4-Chloro-[1,2,5]thiadiazol-3-yl)piperazine-1-carboxylic acid tert-butyl ester (1.0 g, 3.28 mmol) was suspended in 10 mL of 4 M HCl in dioxane. The suspension was stirred overnight and the solid material was removed by filtration. The solid was washed three times with 15 mL ethyl acetate and dried under vacuum. 756 mg of white powder was obtained.

Workup

  1. customthe solid material was removed by filtration
  2. washThe solid was washed three times with 15 mL ethyl acetate
  3. customdried under vacuum

Sources & evidence

ORD record
ord-2e205e0847fa4600a4b442f995ea3e82
Source dataset
uspto-grants-2011_09
Patent number
US08013156B2

Linked notes

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