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1,4-Dioxane → 5-(1-tert-butoxycarbonyl-1,2,3,6-tetrahydro-pyridin-4-yl)-1-(toluene-4-sulfonyl)-1H-indole-2-carboxylic acid ethyl ester

HRID 513859
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 513859
[CH2:1]([O:3][C:4]([C:6]1[N:7]([S:16]([C:19]2[CH:24]=[CH:23][C:22]([CH3:25])=[CH:21][CH:20]=2)(=[O:18])=[O:17])[C:8]2[C:13]([CH:14]=1)=[CH:12][C:11](Br)=[CH:10][CH:9]=2)=[O:5])[CH3:2].[C:26]([O:30][C:31]([N:33]1[CH2:38][CH:37]=[C:36](B2OC(C)(C)C(C)(C)O2)[CH2:35][CH2:34]1)=[O:32])([CH3:29])([CH3:28])[CH3:27].P([O-])([O-])([O-])=O.[K+].[K+].[K+].O1CCOCC1>[Pd].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.O>[CH2:1]([O:3][C:4]([C:6]1[N:7]([S:16]([C:19]2[CH:24]=[CH:23][C:22]([CH3:25])=[CH:21][CH:20]=2)(=[O:18])=[O:17])[C:8]2[C:13]([CH:14]=1)=[CH:12][C:11]([C:36]1[CH2:37][CH2:38][N:33]([C:31]([O:30][C:26]([CH3:29])([CH3:28])[CH3:27])=[O:32])[CH2:34][CH:35]=1)=[CH:10][CH:9]=2)=[O:5])[CH3:2]
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

7

Edukt 4

HCID 312751,4-DioxaneHCID 62657Potassium Phosphate, TribasicHCID 4642098Tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2,3,6-tetrahydropyridine-1-carboxylateHCID 135158625-bromo-1-(toluene-4-sulfonyl)-1H-indole-2-carboxylic acid ethyl ester

Produkt 1

HCID 68005627
5-(1-tert-butoxycarbonyl-1,2,3,6-tetrahydro-pyridin-4-yl)-1-(toluene-4-sulfonyl)-1H-indole-2-carboxylic acid ethyl ester

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 11979704Tetrakis(triphenylphosphine)palladiumKatalysatorHCID 962WaterLösungsmittel

Reaktionsbedingungen

Temperatur
80 °C

Versuchsvorschrift

5-Bromo-1-(toluene-4-sulfonyl)-1H-indole-2-carboxylic acid ethyl ester (844 mg, 2.0 mmol), 4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-3,6-dihydro-2H-pyridine-1-carboxylic acid tert-butyl ester (742 mg, 2.4 mmol), potassium phosphate (848 mg, 4.0 mmol), and tetrakis(triphenylphosphine) palladium (116 mg, 0.1 mmol) were placed into a flask. After deaeration, the air was replaced with nitrogen. Anhydrous dioxane (16 ml) and water (4 ml) were added to the flask, and this was stirred at 80° C. for 15 hours. After cooling it to room temperature, the reaction mixture was filtered through Celite, and then washed with ethyl acetate. The filtrate was concentrated, and the residue obtained by concentration under reduced pressure was purified by silica gel column chromatography. Thus, 5-(1-tert-butoxycarbonyl-1,2,3,6-tetrahydro-pyridin-4-yl)-1-(toluene-4-sulfonyl)-1H-indole-2-carboxylic acid ethyl ester was obtained as a colorless amorphous material (1.0 g, 97.2%).

Aufarbeitung

  1. temperatureAfter cooling it to room temperature
  2. filtrationthe reaction mixture was filtered through Celite
  3. washwashed with ethyl acetate
  4. concentrationThe filtrate was concentrated
  5. customthe residue obtained by concentration under reduced pressure
  6. customwas purified by silica gel column chromatography

Quellen und Nachweise

ORD-Eintrag
ord-b157c636ef984b3b9137e71bbbed3293
Quelldatensatz
uspto-grants-2015_08
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09102692B2

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