Water → 4-[6-(5,5,8,8-Tetramethyl-5,6,7,8-tetrahydronaphthalen-2-yl)pyridin-2-yl]-piperazine-1-carboxylic acid tert-butyl ester

HRID 2175060Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2175060
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][N:11]([C:14]2[CH:19]=[CH:18][CH:17]=[C:16](Br)[N:15]=2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[CH3:21][C:22]1([CH3:37])[CH2:31][CH2:30][C:29]([CH3:33])([CH3:32])[C:28]2[CH:27]=[C:26](B(O)O)[CH:25]=[CH:24][C:23]1=2.O.P([O-])([O-])([O-])=O.[K+].[K+].[K+].O>COCCO.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][N:11]([C:14]2[CH:19]=[CH:18][CH:17]=[C:16]([C:26]3[CH:25]=[CH:24][C:23]4[C:22]([CH3:37])([CH3:21])[CH2:31][CH2:30][C:29]([CH3:33])([CH3:32])[C:28]=4[CH:27]=3)[N:15]=2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]

Komponenten

7

Edukt 4

HCID 962WaterHCID 10353857(5,5,8,8-Tetramethyl-5,6,7,8-tetrahydronaphthalen-2-yl)boronic acidHCID 160590464-Boc-1-(6-bromo-2-pyridyl)piperazineHCID 22031701Potassium phosphate, tribasic, monohydrate

Produkt 1

HCID 672487534-[6-(5,5,8,8-Tetramethyl-5,6,7,8-tetrahydronaphthalen-2-yl)pyridin-2-yl]-piperazine-1-carboxylic acid tert-butyl ester

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 178418476HCID 178418476, VerbindungKatalysatorHCID 80192-MethoxyethanolLösungsmittel

Reaktionsbedingungen

Temperatur
80 °C

Versuchsvorschrift

150 mg (0.44 mmol) of 4-(6-bromopyridin-2-yl)piperazine-1-carboxylic acid tert-butyl ester, 112 mg (0.48 mmol) of 5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphthalen-2-ylboronic acid and 202 mg (0.88 mmol) of tripotassium phosphate monohydrate are suspended in 6 ml of ethylene glycol monomethyl ether, degassed a number of times, and 25 mg (0.04 mmol) of bis(triphenylphosphine)-palladium(II) dichloride are added under nitrogen atmosphere. The reaction mixture is stirred at 80° C. for 16 h, cooled to RT, and 20 ml of water are added. This mixture is extracted three times with ethyl acetate, dried over Na2SO4 and evaporated. The crude product is purified by means of flash chromatography on silica gel.

Aufarbeitung

  1. additionare added under nitrogen atmosphere
  2. temperaturecooled to RT
  3. extractionThis mixture is extracted three times with ethyl acetate
  4. dry with materialdried over Na2SO4
  5. customevaporated
  6. customThe crude product is purified by means of flash chromatography on silica gel

Quellen und Nachweise

ORD-Eintrag
ord-5e714a96b7684b788d884a672e756db8
Quelldatensatz
uspto-grants-2015_06
Patentnummer
US09062015B2

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