Hydrochloric Acid → 4,4-Dimethyl-1-(4-(4-(4-(1,1-dimethylethyl)-2-thiazolyl)-1-piperazinyl)butyl)-2,6-piperidin-dione

HRID 648943Notes

Reaction equation

HRID 648943 reaction equation
Br[CH2:2][CH2:3][CH2:4][CH2:5][N:6]1[C:11](=[O:12])[CH2:10][C:9]([CH3:14])([CH3:13])[CH2:8][C:7]1=[O:15].[CH3:16][C:17]([C:20]1[N:21]=[C:22]([N:25]2[CH2:30][CH2:29][NH:28][CH2:27][CH2:26]2)[S:23][CH:24]=1)([CH3:19])[CH3:18].C([O-])([O-])=O.[K+].[K+].Cl>O.C(O)C.CCOCC.CN(C)C=O>[CH3:13][C:9]1([CH3:14])[CH2:10][C:11](=[O:12])[N:6]([CH2:5][CH2:4][CH2:3][CH2:2][N:28]2[CH2:29][CH2:30][N:25]([C:22]3[S:23][CH:24]=[C:20]([C:17]([CH3:19])([CH3:18])[CH3:16])[N:21]=3)[CH2:26][CH2:27]2)[C:7](=[O:15])[CH2:8]1

Participants

8

Reactant 4

HCID 313Hydrochloric AcidHCID 11430Potassium CarbonateHCID 136603351-(4-Bromobutyl)-4,4-dimethylpiperidine-2,6-dioneHCID 198712791-(4-(1,1-Dimethylethyl)-2-thiazolyl)-piperazine

Product 1

HCID 137477334,4-Dimethyl-1-(4-(4-(4-(1,1-dimethylethyl)-2-thiazolyl)-1-piperazinyl)butyl)-2,6-piperidin-dione

Reagents, catalysts & solvents 3

HCID 962WaterSolvent2×HCID 6228DimethylformamideSolventHCID 21585056Diethyl ether ethanolSolvent

Procedure

4 g 1-(4-Bromobutyl)-4,4-dimethyl-2,6-piperidin-dione, 3.15 g 1-(4-(1,1-dimethylethyl)-2-thiazolyl)-piperazine, 2.7 g K2CO3, 70 ml dimethylformamide and 20 ml water are stirred at room temperature for about 35 hours. The mixture is diluted with water, extracted twice with ether, the combined extracts are washed with water, dried (Na2SO4) and evaporated. The residue is recrystallized from hexane/ethyl acetate, whereby the title compound is obtained, m.p. 93°-94°. M.p. of the hydrochloride is 199°-201° (ethanol/ether).

Workup

  1. extractionextracted twice with ether
  2. washthe combined extracts are washed with water
  3. dry with materialdried (Na2SO4)
  4. customevaporated
  5. customThe residue is recrystallized from hexane/ethyl acetate, whereby the title compound
  6. customis obtained
  7. customis 199°-201°

Sources & evidence

ORD record
ord-7d9e76ca8dfe499992cc66c682396a9b
Source dataset
uspto-grants-1988_04
Patent number
US04737500

Reaction notes

Loading…