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Diisopropylethylamine → Tert-butyl 2-[(4-{[(3,4-dichlorophenyl)amino]carbonyl}piperazin-1-yl)carbonyl]morpholine-4-carboxylate

HRID 2371201
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Reaktionsgleichung

Reaktionsgleichung von HRID 2371201
Cl.[Cl:2][C:3]1[CH:4]=[C:5]([NH:10][C:11]([N:13]2[CH2:18][CH2:17][NH:16][CH2:15][CH2:14]2)=[O:12])[CH:6]=[CH:7][C:8]=1[Cl:9].[C:19]([O:23][C:24]([N:26]1[CH2:31][CH2:30][O:29][CH:28]([C:32](O)=[O:33])[CH2:27]1)=[O:25])([CH3:22])([CH3:21])[CH3:20].C(N(CC)C(C)C)(C)C.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F>C1COCC1>[Cl:2][C:3]1[CH:4]=[C:5]([NH:10][C:11]([N:13]2[CH2:18][CH2:17][N:16]([C:32]([CH:28]3[O:29][CH2:30][CH2:31][N:26]([C:24]([O:23][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:25])[CH2:27]3)=[O:33])[CH2:15][CH2:14]2)=[O:12])[CH:6]=[CH:7][C:8]=1[Cl:9]
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Komponenten

6

Edukt 4

HCID 81531DiisopropylethylamineHCID 27559654-((Tert-butoxy)carbonyl)morpholine-2-carboxylic acidHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 46743200N-(3,4-dichlorophenyl)piperazine-1-carboxamide hydrochloride

Produkt 1

HCID 57656874
Tert-butyl 2-[(4-{[(3,4-dichlorophenyl)amino]carbonyl}piperazin-1-yl)carbonyl]morpholine-4-carboxylate
Ausbeute 123,1 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

N-(3,4-Dichlorophenyl)piperazine-1-carboxamide hydrochloride (467 mg) and 4-(tert-butoxycarbonyl)morpholine-2-carboxylic acid (347 mg) were dissolved in dry THF (10 mL) followed by addition of N,N-diisopropylethylamine (0.52 ml) and HATU (628 mg) and the reaction was stirred for 4 h. The solvent was evaporated under reduced pressure then redissolved in ethyl acetate (50 ml) followed by washing with sat. aqueous NaHCO3 (20 ml), 10% w/v citric acid (aq.) (15 ml) and brine (15 ml). The organic layer was dried (MgSO4), filtered and evaporated. Purification by chromatography (1:1 EtOAc:hexanes 1:1 to EtOAc neat) afforded the title compound (900 mg) as an impure foam contaminated with N,N,N′,N′-tetramethylurea. The product was used without further purification.

Aufarbeitung

  1. customThe solvent was evaporated under reduced pressure
  2. dissolutionthen redissolved in ethyl acetate (50 ml)
  3. washby washing with sat. aqueous NaHCO3 (20 ml), 10%
  4. dry with materialThe organic layer was dried (MgSO4)
  5. filtrationfiltered
  6. customevaporated
  7. customPurification by chromatography (1:1 EtOAc:hexanes 1:1 to EtOAc neat)

Quellen und Nachweise

ORD-Eintrag
ord-61f5414f1bd14a8c9eeead5a2e284922
Quelldatensatz
uspto-grants-2014_04
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08710224B2

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