Trifluoroacetic acid → 5-{3-[4-Trifluoromethyl-6-(6-trifluoromethyl-pyridin-3-yl)-pyrimidin-2-yl]-phenyl}-thiophene-2-sulfonic acid amide

HRID 906265Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 906265
C([NH:5][S:6]([C:9]1[S:10][C:11]([C:14]2[CH:19]=[CH:18][CH:17]=[C:16]([C:20]3[N:25]=[C:24]([C:26]([F:29])([F:28])[F:27])[CH:23]=[C:22]([C:30]4[CH:31]=[N:32][C:33]([C:36]([F:39])([F:38])[F:37])=[CH:34][CH:35]=4)[N:21]=3)[CH:15]=2)=[CH:12][CH:13]=1)(=[O:8])=[O:7])(C)(C)C.C(O)(C(F)(F)F)=O>ClCCl>[F:29][C:26]([F:27])([F:28])[C:24]1[CH:23]=[C:22]([C:30]2[CH:31]=[N:32][C:33]([C:36]([F:39])([F:38])[F:37])=[CH:34][CH:35]=2)[N:21]=[C:20]([C:16]2[CH:15]=[C:14]([C:11]3[S:10][C:9]([S:6]([NH2:5])(=[O:8])=[O:7])=[CH:13][CH:12]=3)[CH:19]=[CH:18][CH:17]=2)[N:25]=1

Komponenten

4

Edukt 2

HCID 6422Trifluoroacetic acidHCID 86624637N-tert-Butyl-5-{3-[4-trifluoromethyl-6-(6-trifluoromethyl-pyridin-3-yl)-pyrimidin-2-yl]-phenyl}-thiophene-2-sulfonic acid amide

Produkt 1

HCID 250969465-{3-[4-Trifluoromethyl-6-(6-trifluoromethyl-pyridin-3-yl)-pyrimidin-2-yl]-phenyl}-thiophene-2-sulfonic acid amideAusbeute 49,1 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

To a cooled and stirred solution of N-tert-butyl-5-{3-[4-trifluoromethyl-6-(6-trifluoromethyl-pyridin-3-yl)-pyrimidin-2-yl]-phenyl}-thiophene-2-sulfonic acid amide (0.45 g) in dichloromethane (6 ml) was added TFA (6 ml) and the reaction mixture was allowed to stir at room temperature for 15 h. The mixture was evaporated to dryness, poured into 2N Na2CO3 solution (25 ml) and extracted with ethyl acetate (3×50 ml). The combined organic layers were washed with brine (50 ml), dried (MgSO4) and evaporated. Further purification by flash chromatography on silica gel (ethyl acetate/heptane) and crystallization (ethyl acetate/heptane) yielded the title compound as a light yellow solid (0.2 g, 38%). MS (ISP) 531.0 [(M+H)+]; mp 250.5° C.

Aufarbeitung

  1. temperatureTo a cooled
  2. customThe mixture was evaporated to dryness
  3. additionpoured into 2N Na2CO3 solution (25 ml)
  4. extractionextracted with ethyl acetate (3×50 ml)
  5. washThe combined organic layers were washed with brine (50 ml)
  6. dry with materialdried (MgSO4)
  7. customevaporated
  8. customFurther purification by flash chromatography
  9. customon silica gel (ethyl acetate/heptane) and crystallization (ethyl acetate/heptane)

Quellen und Nachweise

ORD-Eintrag
ord-0d4ac17df72c4912ba0b5985dc600699
Quelldatensatz
uspto-grants-2011_09
Patentnummer
US08012986B2

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