Diisopropylethylamine → 4-tert-Butoxycarbonyl-1-[(6-chloronaphthalen-2-yl)sulfonyl]-2-ethoxycarbonylpiperazine

HRID 1061011Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1061011
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][NH:11][CH:10]([C:14]([O:16][CH2:17][CH3:18])=[O:15])[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[Cl:19][C:20]1[CH:21]=[C:22]2[C:27](=[CH:28][CH:29]=1)[CH:26]=[C:25]([S:30](Cl)(=[O:32])=[O:31])[CH:24]=[CH:23]2.C(N(C(C)C)CC)(C)C>ClCCl>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][N:11]([S:30]([C:25]2[CH:24]=[CH:23][C:22]3[C:27](=[CH:28][CH:29]=[C:20]([Cl:19])[CH:21]=3)[CH:26]=2)(=[O:31])=[O:32])[CH:10]([C:14]([O:16][CH2:17][CH3:18])=[O:15])[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]

Komponenten

5

Edukt 3

HCID 81531DiisopropylethylamineHCID 106351296-Chloronaphthalene-2-sulfonyl chlorideHCID 114026711-tert-Butyl 3-ethyl piperazine-1,3-dicarboxylate

Produkt 1

HCID 697002244-tert-Butoxycarbonyl-1-[(6-chloronaphthalen-2-yl)sulfonyl]-2-ethoxycarbonylpiperazine

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

In dichloromethane (18 ml), 1-tert-butoxycarbonyl-3-ethoxycarbonylpiperazine (517 mg) and 6-chloro-2-naphthylsulfonyl chloride (588 mg) were dissolved under ice cooling. To the resulting solution, diisopropylethylamine (0.59 ml) was added, followed by stirring at room temperature for 63 hours. The residue obtained by distilling off the solvent under reduced pressure was purified by chromatography on a silica gel column (hexane:ethyl acetate=3:1), whereby the title compound (688 mg, 71%) was obtained.

Aufarbeitung

  1. customThe residue obtained
  2. distillationby distilling off the solvent under reduced pressure
  3. customwas purified by chromatography on a silica gel column (hexane:ethyl acetate=3:1), whereby the title compound (688 mg, 71%)
  4. customwas obtained

Quellen und Nachweise

ORD-Eintrag
ord-18d2375fe8424e229100dee94b9ca76e
Quelldatensatz
uspto-grants-2003_02
Patentnummer
US06525042B1

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