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Dichloromethane → 5-{4-[3-(2-Fluoro-5-methyl-phenylcarbamoyl)-phenoxy]-pyridin-2-yl}-1H-pyrrole-3-carboxylic acid methyl ester

HRID 1402493
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1402493
Br[C:2]1[CH:7]=[C:6]([O:8][C:9]2[CH:10]=[C:11]([CH:23]=[CH:24][CH:25]=2)[C:12]([NH:14][C:15]2[CH:20]=[C:19]([CH3:21])[CH:18]=[CH:17][C:16]=2[F:22])=[O:13])[CH:5]=[CH:4][N:3]=1.CC1(C)C(C)(C)OB([C:34]2[NH:38][CH:37]=[C:36]([C:39]([O-:41])=[O:40])[CH:35]=2)O1.[CH2:43](Cl)Cl>C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[CH3:43][O:41][C:39]([C:36]1[CH:35]=[C:34]([C:2]2[CH:7]=[C:6]([O:8][C:9]3[CH:25]=[CH:24][CH:23]=[C:11]([C:12](=[O:13])[NH:14][C:15]4[CH:20]=[C:19]([CH3:21])[CH:18]=[CH:17][C:16]=4[F:22])[CH:10]=3)[CH:5]=[CH:4][N:3]=2)[NH:38][CH:37]=1)=[O:40]
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

5

Edukt 3

HCID 6344DichloromethaneHCID 581678683-(2-bromo-pyridin-4-yloxy)-N-(2-fluoro-5-methyl-phenyl)-benzamideHCID 866515565-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrrole-3-carboxylate

Produkt 1

HCID 510016275-{4-[3-(2-Fluoro-5-methyl-phenylcarbamoyl)-phenoxy]-pyridin-2-yl}-1H-pyrrole-3-carboxylic acid methyl esterAusbeute 2.806,2 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 44119782Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)Katalysator

Reaktionsbedingungen

Temperatur
95 °C

Versuchsvorschrift

A mixture of 3-(2-bromo-pyridin-4-yloxy)-N-(2-fluoro-5-methyl-phenyl)-benzamide (200 mg, 0.50 mmol), methyl-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrrole-3-carboxylate (251 mg, 1.0 mmol) and PdCl2(dppf).CH2Cl2 (10 mg, 0.012 mmol) was added to a thick-walled reaction vessel and purged with N2. A solution of 2M Na2CO3 (0.5 mL) was added, followed by DMSO (8 mL). The reaction vessel was sealed and the mixture stirred at 95° C. for 16 h. The reaction vessel was cooled to room temperature and the mixture was poured into 100 ml of water. The precipitates were filtered, washed with water and dried to give the crude, which was purified via column chromatography eluting with 30-40% EtOAc/hexanes to afford 5-{4-[3-(2-Fluoro-5-methyl-phenylcarbamoyl)-phenoxy]-pyridin-2-yl}-1H-pyrrole-3-carboxylic acid methyl ester (150 mg, 58% yield).

Aufarbeitung

  1. custompurged with N2
  2. additionA solution of 2M Na2CO3 (0.5 mL) was added
  3. customThe reaction vessel was sealed
  4. temperatureThe reaction vessel was cooled to room temperature
  5. additionthe mixture was poured into 100 ml of water
  6. filtrationThe precipitates were filtered
  7. washwashed with water
  8. customdried
  9. customto give the crude, which
  10. customwas purified via column chromatography
  11. washeluting with 30-40% EtOAc/hexanes

Quellen und Nachweise

ORD-Eintrag
ord-df30499f4a4447f8a62d6cf8a8bbb617
Quelldatensatz
uspto-grants-2014_12
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08906944B2

Notizen zur Reaktion

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