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2,3-Dimethylbenzoic acid → Tert-butyl 4-(2,4-difluorophenyl)-2-(2,3-dimethylbenzamido)benzoate

HRID 1673445
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1673445
C(Cl)(=O)C(Cl)=O.[CH3:7][C:8]1[C:16]([CH3:17])=[CH:15][CH:14]=[CH:13][C:9]=1[C:10]([OH:12])=O.[NH2:18][C:19]1[CH:31]=[C:30]([C:32]2[CH:37]=[CH:36][C:35]([F:38])=[CH:34][C:33]=2[F:39])[CH:29]=[CH:28][C:20]=1[C:21]([O:23][C:24]([CH3:27])([CH3:26])[CH3:25])=[O:22].C(=O)([O-])O.[Na+]>C(N(CC)CC)C.C(Cl)Cl.CN(C)C=O>[F:39][C:33]1[CH:34]=[C:35]([F:38])[CH:36]=[CH:37][C:32]=1[C:30]1[CH:29]=[CH:28][C:20]([C:21]([O:23][C:24]([CH3:26])([CH3:27])[CH3:25])=[O:22])=[C:19]([NH:18][C:10](=[O:12])[C:9]2[CH:13]=[CH:14][CH:15]=[C:16]([CH3:17])[C:8]=2[CH3:7])[CH:31]=1
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

8

Edukt 4

HCID 117822,3-Dimethylbenzoic acidHCID 65578Oxalyl chlorideHCID 516892Sodium BicarbonateHCID 67342694Tert-butyl 2-amino-4-(2,4-difluorophenyl)benzoate

Produkt 1

HCID 67343241Tert-butyl 4-(2,4-difluorophenyl)-2-(2,3-dimethylbenzamido)benzoate

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 6228
Dimethylformamide
Lösungsmittel
HCID 6344DichloromethaneLösungsmittel2×
HCID 8471TriethylamineLösungsmittel

Versuchsvorschrift

1.7 mL of methylene chloride, 1.0 μL of N,N-dimethylformamide and 0.025 mL of oxalyl chloride were added to 41 mg of 2,3-dimethylbenzoic acid at room temperature sequentially and stirred at the same temperature for 1 hour. The reaction mixture was added to a mixed solution of 49 mg of tert-butyl 2-amino-4-(2,4-difluorophenyl)benzoate, 2.8 mL of methylene chloride and 0.36 mL of triethylamine and stirred at room temperature for 1 hour. A saturated sodium hydrogen carbonate aqueous solution was added to the reaction mixture, and the organic layer was separated, and the solvent was evaporated under reduced pressure. The obtained residue was purified with silica gel column chromatography [Flash Tube 2008 manufactured by Trikonex Company, eluent; hexane:ethyl acetate=4:1]to obtain tert-butyl 4-(2,4-difluorophenyl)-2-(2,3-dimethylbenzamido)benzoate.

Aufarbeitung

  1. stirringstirred at room temperature for 1 hour
  2. customthe organic layer was separated
  3. customthe solvent was evaporated under reduced pressure
  4. customThe obtained residue was purified with silica gel column chromatography [Flash Tube 2008

Quellen und Nachweise

ORD-Eintrag
ord-a0c5cdcc143d42efad12365784265f6c
Quelldatensatz
uspto-grants-2011_08
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07999132B2

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