Methyl iodide → HCID 13073255, Verbindung

HRID 67650Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 67650
[H-].[Na+].FC(F)(F)C1C=C(C2C(N)=C(C(OC)=O)SN=2)C=CC=1.CI.[CH3:25][NH:26][C:27]1[C:28]([C:36]2[CH:41]=[CH:40][CH:39]=[C:38]([C:42]([F:45])([F:44])[F:43])[CH:37]=2)=[N:29][S:30][C:31]=1[C:32]([O:34]C)=[O:33]>O1CCCC1>[F:45][C:42]([F:43])([F:44])[C:38]1[CH:37]=[C:36]([C:28]2[C:27]([NH:26][CH3:25])=[C:31]([C:32]([OH:34])=[O:33])[S:30][N:29]=2)[CH:41]=[CH:40][CH:39]=1

Komponenten

6

Edukt 4

HCID 6328Methyl iodideHCID 24758Sodium hydrideHCID 13073199Methyl 4-amino-3-[3-(trifluoromethyl)phenyl]-1,2-thiazole-5-carboxylateHCID 20265399HCID 20265399, Verbindung

Produkt 1

HCID 13073255HCID 13073255, Verbindung

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

A suspension of 0.5 g. of sodium hydride (washed free of mineral oil) in 15 ml. of tetrahydrofuran was cooled to -20° C. and stirred. To the cold stirred suspension was added in one portion 3.0 g. of methyl 3-(3-trifluoromethylphenyl)-4-amino-5-isothiazolecarboxylate. The reaction mixture was warmed to room temperature, at which time 1.5 ml. of methyl iodide was added in one portion. The reaction mixture was stirred at ambient temperature for two hours, and then was added to 50 ml. of ice water. The aqueous mixture was extracted several times with diethyl ether. The ethereal extracts were combined, washed with water, dried and the solvent was removed by evaporation under reduced pressure to afford 2.0 g. of methyl 4-methylamino-3-(3-trifluoromethylphenyl)-5-isothiazolecarboxylate.

Aufarbeitung

  1. additionA suspension of 0.5 g
  2. stirringTo the cold stirred suspension
  3. additionwas added in one portion 3.0 g
  4. stirringThe reaction mixture was stirred at ambient temperature for two hours
  5. additionwas added to 50 ml
  6. extractionThe aqueous mixture was extracted several times with diethyl ether
  7. washwashed with water
  8. customdried
  9. customthe solvent was removed by evaporation under reduced pressure
  10. customto afford 2.0 g

Quellen und Nachweise

ORD-Eintrag
ord-c0df6d52a0734ee18176b4e4379b42e5
Quelldatensatz
uspto-grants-1982_08
Patentnummer
US04346094

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