Diisopropylethylamine → 2-methoxy-6-methylsulfanyl-N-(2-oxo-cyclohexyl)-4-trifluoromethyl-benzamide

HRID 1950892

Reaktionsgleichung

Reaktionsgleichung von HRID 1950892
[CH3:1][O:2][C:3]1[CH:11]=[C:10]([C:12]([F:15])([F:14])[F:13])[CH:9]=[C:8]([S:16][CH3:17])[C:4]=1[C:5]([OH:7])=O.C(N(CC)C(C)C)(C)C.F[P-](F)(F)(F)(F)F.N1(OC(N(C)C)=[N+](C)C)C2N=CC=CC=2N=N1.[NH2:51][CH:52]1[CH2:57][CH2:56][CH2:55][CH2:54][C:53]1=[O:58]>CN(C)C=O>[CH3:1][O:2][C:3]1[CH:11]=[C:10]([C:12]([F:15])([F:14])[F:13])[CH:9]=[C:8]([S:16][CH3:17])[C:4]=1[C:5]([NH:51][CH:52]1[CH2:57][CH2:56][CH2:55][CH2:54][C:53]1=[O:58])=[O:7]

Komponenten

6

Edukt 4

HCID 81531DiisopropylethylamineHCID 4138882-AminocyclohexanoneHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 591979212-Methoxy-6-methylsulfanyl-4-trifluoromethyl-benzoic acid2×

Produkt 1

HCID 580629692-methoxy-6-methylsulfanyl-N-(2-oxo-cyclohexyl)-4-trifluoromethyl-benzamideAusbeute 68,3 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

2-Methoxy-6-methylsulfanyl-4-trifluoromethyl-benzoic acid (intermediate A, 400 mg, 1.5 mmol) was dissolved in 10 mL dimethylformamide. N,N-Diisopropyl ethyl amine (505 mg, 3.9 mmol) and O-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (571 mg, 1.5 mmol) were added. After 5 minutes of stirring at room temperature 2-amino-cyclohexanone (CAS 6946-05-0) (247 mg, 1.6 mmol) was added. The reaction mixture was stirred at room temperature overnight. The solvent was evaporated off. The residue was taken up in 2N sodium carbonate solution and ethyl acetate and was extracted three times with ethyl acetate. The combined organic phases were dried on sodium sulfate, filtered and evaporated. Purification of the residue by flash chromatography on silica gel (heptane/ethyl acetate 1:0→0:1) yielded 2-methoxy-6-methylsulfanyl-N-(2-oxo-cyclohexyl)-4-trifluoromethyl-benzamide as a white foam (370 mg, 68%), MS: m/e=362.2 [(M+H)+].

Aufarbeitung

  1. additionwas added
  2. customThe solvent was evaporated off
  3. extractionethyl acetate and was extracted three times with ethyl acetate
  4. customThe combined organic phases were dried on sodium sulfate
  5. filtrationfiltered
  6. customevaporated
  7. customPurification of the residue by flash chromatography on silica gel (heptane/ethyl acetate 1:0→0:1)

Quellen und Nachweise

ORD-Eintrag
ord-647bd2608a2b4b8291387b2aef2168f5
Quelldatensatz
uspto-grants-2013_03
Patentnummer
US08404673B2

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