Thiophosgene → (R)-2-(4-(4-chlorobenzyl)-5-methyl-4H-1,2,4-triazol-3-yl)-N-(2-methyl-6-(trifluoromethyl)pyridin-3-yl)pyrrolidine-1-carbothioamide

HRID 2063499Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2063499
[C:1](Cl)(Cl)=[S:2].[CH3:5][C:6]1[C:11]([NH2:12])=[CH:10][CH:9]=[C:8]([C:13]([F:16])([F:15])[F:14])[N:7]=1.C(N(CC)C(C)C)(C)C.Cl.[Cl:27][C:28]1[CH:46]=[CH:45][C:31]([CH2:32][N:33]2[C:37]([C@H:38]3[CH2:42][CH2:41][CH2:40][NH:39]3)=[N:36][N:35]=[C:34]2[CH2:43]C)=[CH:30][CH:29]=1.C([O-])(O)=O.[Na+]>C(Cl)Cl.[Cl-].[Na+].O>[Cl:27][C:28]1[CH:46]=[CH:45][C:31]([CH2:32][N:33]2[C:34]([CH3:43])=[N:35][N:36]=[C:37]2[C@H:38]2[CH2:42][CH2:41][CH2:40][N:39]2[C:1](=[S:2])[NH:12][C:11]2[C:6]([CH3:5])=[N:7][C:8]([C:13]([F:14])([F:16])[F:15])=[CH:9][CH:10]=2)=[CH:30][CH:29]=1

Komponenten

8

Edukt 5

HCID 10040ThiophosgeneHCID 81531Diisopropylethylamine2×HCID 516892Sodium BicarbonateHCID 35218502-methyl-6-(trifluoromethyl)pyridin-3-amineHCID 68811647(R)-4-(4-chlorobenzyl)-3-ethyl-5-(pyrrolidin-2-yl)-4H-1,2,4-triazole HCl salt

Produkt 1

HCID 57650139(R)-2-(4-(4-chlorobenzyl)-5-methyl-4H-1,2,4-triazol-3-yl)-N-(2-methyl-6-(trifluoromethyl)pyridin-3-yl)pyrrolidine-1-carbothioamideAusbeute 26,9 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6344DichloromethaneLösungsmittel3×HCID 57417360Sodium chloride; waterLösungsmittel

Reaktionsbedingungen

Temperatur
0 °C

Versuchsvorschrift

To a stirring solution of thiophosgene (0.23 mL, 3 mmol) in 50 mL of CH2Cl2 at 0° C. was added dropwise a mixed solution of 2-methyl-6-(trifluoromethyl)pyridin-3-amine (0.528 g, 3 mmol) and N,N-diisopropylethylamine (0.522 mL, 3 mmol) in dichloromethane (10 mL). The reaction mixture was stirred at 0° C., warming up to room temperature within an hour. Then the mixture was cooled at 0° C. and to it was added a solution of the (R)-4-(4-chlorobenzyl)-3-ethyl-5-(pyrrolidin-2-yl)-4H-1,2,4-triazole HCl salt (1.05 g, 3 mmol) and N,N-diisopropylethylamine (1.044 mL, 6 mmol) in dichloromethane (10 mL) slowly. The resulting mixture was stirred 0° C. for 30 minutes, then at room temperature overnight. The reaction mixture was treated with sat. aqueous NaHCO3 (10 mL) and brine, dried over Na2SO4, and concentrated in vacuo. Flash chromatography purification (Hex/EtOAc with 10% of MeOH) afforded the desired product as yellow solid (0.4 g, 26.9%).

Aufarbeitung

  1. temperaturewarming up to room temperature within an hour
  2. temperatureThen the mixture was cooled at 0° C. and to it
  3. stirringThe resulting mixture was stirred 0° C. for 30 minutes
  4. customat room temperature
  5. customovernight
  6. dry with materialdried over Na2SO4
  7. concentrationconcentrated in vacuo
  8. customFlash chromatography purification (Hex/EtOAc with 10% of MeOH)

Quellen und Nachweise

ORD-Eintrag
ord-463794765f4c4cf28c6f671ddfc22ad9
Quelldatensatz
uspto-grants-2012_10
Patentnummer
US08288371B2

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