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Ammonium Hydroxide → HCID 131733577, Verbindung

HRID 1749404
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1749404
[CH3:1][C:2]1[CH:9]=[C:8]([C:10]([F:13])([F:12])[F:11])[C:5]([C:6]#[N:7])=[CH:4][N:3]=1.[OH-].[NH4+].CCN(C(C)C)C(C)C.[O:25](C(OC(C)(C)C)=O)[C:26]([O:28][C:29]([CH3:32])([CH3:31])[CH3:30])=O>CO.[Ni].C(Cl)Cl>[CH3:1][C:2]1[N:3]=[CH:4][C:5]([CH2:6][NH:7][C:26](=[O:25])[O:28][C:29]([CH3:32])([CH3:31])[CH3:30])=[C:8]([C:10]([F:11])([F:13])[F:12])[CH:9]=1
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

8

Edukt 4

HCID 14923Ammonium HydroxideHCID 81531DiisopropylethylamineHCID 90495Di-tert-butyl dicarbonateHCID 27809766-Methyl-4-(trifluoromethyl)nicotinonitrile

Produkt 1

HCID 131733577HCID 131733577, VerbindungAusbeute 90 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 935
Nickel
Katalysator
HCID 887MethanolLösungsmittel
HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

6-Methyl-4-(trifluoromethyl)nicotinonitrile (1.0 equiv.) was dissolved in MeOH (0.1 M), wet Raney nickel was added, followed by ammonium hydroxide (32 equiv.). The reaction vessel was evacuated three times, refilled with hydrogen and then equipped with a hydrogen balloon and stirred at room temperature for 48 h. The mixture was filtered through a short pad of celite which was washed with MeOH. Ethanol was added to remove excess water upon concentration. The volatile solvents were removed to afford crude product which was dissolved in DCM. DIEA (1.8 equiv.) was added followed by BOC2O (0.95 equiv.). The reaction was stirred at room temperature for 1 h. The volatile solvent was removed and the residue was purified via Biotage chromatography (10-100% ethyl acetate in hexanes) to afford tert-butyl ((6-methyl-4-(trifluoromethyl)pyridin-3-yl)methyl)carbamate (90% yield); MS(ESI) m/z 290.3[M+1]+

Aufarbeitung

  1. customThe reaction vessel was evacuated three times
  2. additionrefilled with hydrogen
  3. customequipped with a hydrogen balloon
  4. filtrationThe mixture was filtered through a short pad of celite which
  5. washwas washed with MeOH
  6. additionEthanol was added
  7. customto remove excess water
  8. concentrationupon concentration
  9. customThe volatile solvents were removed
  10. customto afford crude product which
  11. stirringThe reaction was stirred at room temperature for 1 h
  12. customThe volatile solvent was removed
  13. customthe residue was purified via Biotage chromatography (10-100% ethyl acetate in hexanes)

Quellen und Nachweise

ORD-Eintrag
ord-2074697ea3194d3e9dd5b40d46dfba8b
Quelldatensatz
uspto-grants-2015_10
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09156798B2

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