Water → HCID 68779496, compound

HRID 2263290Notes

Reaction equation

HRID 2263290 reaction equation
Br[C:2]1[S:3][CH:4]=[C:5]([C:7]2[CH:12]=[CH:11][CH:10]=[C:9]([O:13][CH3:14])[CH:8]=2)[N:6]=1.[N:15]1([C:21]([O:23][C:24]([CH3:27])([CH3:26])[CH3:25])=[O:22])[CH2:20][CH2:19][NH:18][CH2:17][CH2:16]1.C(=O)([O-])[O-].[K+].[K+].O>CN(C)C=O>[CH3:14][O:13][C:9]1[CH:8]=[C:7]([C:5]2[N:6]=[C:2]([N:18]3[CH2:17][CH2:16][N:15]([C:21]([O:23][C:24]([CH3:27])([CH3:26])[CH3:25])=[O:22])[CH2:20][CH2:19]3)[S:3][CH:4]=2)[CH:12]=[CH:11][CH:10]=1

Participants

6

Reactant 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 143452tert-Butyl piperazine-1-carboxylateHCID 49758215HCID 49758215, compound

Product 1

HCID 68779496HCID 68779496, compoundYield 51.2%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A solution of 2-bromo-4-(3-methoxyphenyl)-1,3-thiazole (3.70 g, 13.7 mmol), tert-butyl piperazine-1-carboxylate (3.83 g, 20.5 mmol) and potassium carbonate (1.89 g, 13.7 mmol) in dimethylformamide (50 ml) was stirred at 120° C. for 7 hours. Water was poured to the reaction mixture, and the mixture was extracted with ethyl acetate. The extract was washed with water, and dried over anhydrous magnesium sulfate, and the solvent was distilled off under reduced pressure. The residue was purified by silica gel column chromatography (hexane:ethyl acetate=9:1) to give 2.63 g (51.2%) of the desired product as a solid.

Workup

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe extract was washed with water
  3. dry with materialdried over anhydrous magnesium sulfate
  4. distillationthe solvent was distilled off under reduced pressure
  5. customThe residue was purified by silica gel column chromatography (hexane:ethyl acetate=9:1)

Sources & evidence

ORD record
ord-1b564b5b4f404e069aae53f8f2db53fb
Source dataset
uspto-grants-2010_12
Patent number
US07851473B2

Reaction notes

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