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Water → N-(1,1-Dioxido-1-benzothien-6-yl)-4-(3-phenyl-1,2,4-thiadiazol-5-yl)piperazine-1-carboxamide

HRID 2263021
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2263021
[O:1]=[S:2]1(=[O:20])[C:6]2[CH:7]=[C:8]([NH:11][C:12](=[O:19])OCC(Cl)(Cl)Cl)[CH:9]=[CH:10][C:5]=2[CH:4]=[CH:3]1.[C:21]1([C:27]2[N:31]=[C:30]([N:32]3[CH2:37][CH2:36][NH:35][CH2:34][CH2:33]3)[S:29][N:28]=2)[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=1.C(N(C(C)C)CC)(C)C.O>CS(C)=O>[O:20]=[S:2]1(=[O:1])[C:6]2[CH:7]=[C:8]([NH:11][C:12]([N:35]3[CH2:36][CH2:37][N:32]([C:30]4[S:29][N:28]=[C:27]([C:21]5[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=5)[N:31]=4)[CH2:33][CH2:34]3)=[O:19])[CH:9]=[CH:10][C:5]=2[CH:4]=[CH:3]1
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Komponenten

6

Edukt 4

HCID 962WaterHCID 81531DiisopropylethylamineHCID 27777601-(3-Phenyl-(1,2,4)thiadiazol-5-yl)-piperazineHCID 866254872,2,2-Trichloroethyl (1,1-dioxido-1-benzothien-6-yl)carbamate

Produkt 1

HCID 68775715N-(1,1-Dioxido-1-benzothien-6-yl)-4-(3-phenyl-1,2,4-thiadiazol-5-yl)piperazine-1-carboxamideAusbeute 31,7 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 679Dimethyl SulfoxideLösungsmittel

Versuchsvorschrift

A mixed solution of 2,2,2-trichloroethyl (1,1-dioxido-1-benzothien-6-yl)carbamate (263 mg, 0.738 mmol), 1-(3-phenyl-1,2,4-thiadiazol-5-yl)piperazine (200 mg, 0.811 mmol) and diisopropylethylamine (0.129 ml, 0.811 mmol) in dimethyl sulfoxide (2.5 ml) was stirred at 70° C. for 3 hours. Water was poured to the reaction mixture, and the resulting solution 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=1:1) and recrystallized from a mixed solvent of hexane and tetrahydrofuran to give 106 mg (31.7%) of the desired product as a solid.

Aufarbeitung

  1. extractionthe resulting solution 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=1:1)
  6. customrecrystallized from a mixed solvent of hexane and tetrahydrofuran

Quellen und Nachweise

ORD-Eintrag
ord-9132cc034bd94b19a84cd342c4f015fa
Quelldatensatz
uspto-grants-2010_12
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07851473B2

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