Water → tert-butyl [2-chloro-5-({[1-methyl-3-(pentafluoroethyl)-4-(trifluoromethyl)-1H-pyrazol-5-yl]carbonyl}amino)benzyl]carbamate

HRID 1500059Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1500059
[Cl-].COC1N=C(OC)N=C([N+]2(C)CCOCC2)N=1.[CH3:19][N:20]1[C:24]([C:25](O)=[O:26])=[C:23]([C:28]([F:31])([F:30])[F:29])[C:22]([C:32]([F:38])([F:37])[C:33]([F:36])([F:35])[F:34])=[N:21]1.[NH2:39][C:40]1[CH:41]=[CH:42][C:43]([Cl:55])=[C:44]([CH:54]=1)[CH2:45][NH:46][C:47](=[O:53])[O:48][C:49]([CH3:52])([CH3:51])[CH3:50].O>C1COCC1>[Cl:55][C:43]1[CH:42]=[CH:41][C:40]([NH:39][C:25]([C:24]2[N:20]([CH3:19])[N:21]=[C:22]([C:32]([F:37])([F:38])[C:33]([F:35])([F:36])[F:34])[C:23]=2[C:28]([F:30])([F:31])[F:29])=[O:26])=[CH:54][C:44]=1[CH2:45][NH:46][C:47](=[O:53])[O:48][C:49]([CH3:50])([CH3:51])[CH3:52]

Komponenten

6

Edukt 4

HCID 962WaterHCID 27340594-(4,6-Dimethoxy-1,3,5-triazin-2-yl)-4-methylmorpholinium chlorideHCID 21077619Tert-butyl (5-amino-2-chlorobenzyl)carbamateHCID 866600921-methyl-3-(pentafluoroethyl)-4-(trifluoromethyl)-1H-pyrazole-5-carboxylic acid

Produkt 1

HCID 131734263tert-butyl [2-chloro-5-({[1-methyl-3-(pentafluoroethyl)-4-(trifluoromethyl)-1H-pyrazol-5-yl]carbonyl}amino)benzyl]carbamateAusbeute 41 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

4-(4,6-Dimethoxy-1,3,5-triazin-2-yl)-4-methylmorpholin-4-ium chloride (=DMTMM, see Tetrahedron 1999, 55, 13159-13170) (1.25 g, 4.51 mmol, 1.1 eq.) was added to 1-methyl-3-(pentafluoroethyl)-4-(trifluoromethyl)-1H-pyrazole-5-carboxylic acid (1.28 g, 4.1 mmol; preparation according to WO2010/051926) and tert-butyl (5-amino-2-chlorobenzyl)carbamate (1.05 g, 4.1 mmol, 1.0 eq.) in THF (15 ml), and the mixture was left at room temperature for 18 h. Water (30 ml) was added, the mixture was extracted with ethyl acetate (3×30 ml) and the extracts were dried over MgSO4. After concentration under reduced pressure, the product was purified by column chromatography on silica gel (hexane/ethyl acetate), giving tert-butyl [2-chloro-5-({[1-methyl-3-(pentafluoroethyl)-4-(trifluoromethyl)-1H-pyrazol-5-yl]carbonyl}amino)benzyl]carbamate (924 mg, 41%).

Aufarbeitung

  1. extractionthe mixture was extracted with ethyl acetate (3×30 ml)
  2. dry with materialthe extracts were dried over MgSO4
  3. concentrationAfter concentration under reduced pressure
  4. customthe product was purified by column chromatography on silica gel (hexane/ethyl acetate)

Quellen und Nachweise

ORD-Eintrag
ord-cd729f0ec4364cedbaae3247b1a9251a
Quelldatensatz
uspto-grants-2015_12
Patentnummer
US09204645B2

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