Potassium Carbonate → 3-[1-(2-Chloro-phenyl)-ethoxy]-5-(1H-pyrrolo[2,3-b]pyridin-5-yl)-thiophene-2-carboxylic acid methyl ester

HRID 409426Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 409426
[CH3:1][O:2][C:3]([C:5]1[S:6][C:7](Br)=[CH:8][C:9]=1[O:10][CH:11]([C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=1[Cl:19])[CH3:12])=[O:4].CC1(C)C(C)(C)OB([C:29]2[CH:30]=[C:31]3[CH:37]=[CH:36][NH:35][C:32]3=[N:33][CH:34]=2)O1.C([O-])([O-])=O.[K+].[K+]>C1(C)C=CC=CC=1.C(O)C.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH3:1][O:2][C:3]([C:5]1[S:6][C:7]([C:29]2[CH:30]=[C:31]3[CH:37]=[CH:36][NH:35][C:32]3=[N:33][CH:34]=2)=[CH:8][C:9]=1[O:10][CH:11]([C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=1[Cl:19])[CH3:12])=[O:4]

Komponenten

7

Edukt 3

HCID 11430Potassium CarbonateHCID 242087895-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrrolo(2,3-b)pyridineHCID 589704945-Bromo-3-[1-(2-chloro-phenyl)-ethoxy]-thiophene-2-carboxylic acid methyl ester

Produkt 1

HCID 585252643-[1-(2-Chloro-phenyl)-ethoxy]-5-(1H-pyrrolo[2,3-b]pyridin-5-yl)-thiophene-2-carboxylic acid methyl esterAusbeute 45,3 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 178418397HCID 178418397, VerbindungKatalysatorHCID 702EthanolLösungsmittelHCID 1140TolueneLösungsmittel

Reaktionsbedingungen

Temperatur
140 °C

Versuchsvorschrift

5-Bromo-3-[1-(2-chloro-phenyl)-ethoxy]-thiophene-2-carboxylic acid methyl ester (200 mg, 0.53 mmol, 1.0 Eq.), 5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1H-pyrrolo[2,3-b]pyridine (195 mg, 0.80 mmol, 1.5 Eq.) and Pd(PPh3)4 (61 mg, 0.05 mmol, 0.1 Eq.) were dissolved in toluene (1.6 mL) and ethanol (0.4 mL). 2M K2CO3 (0.8 mL, 1.60 mmol, 3.0 Eq.) was added and the reaction heated under microwave conditions at 140° C. for 10 minutes. The reaction was partitioned between EtOAc (10 mL) and water (10 mL) and the aqueous phase extracted with EtOAc (3×10 mL). The combined organic layers were dried (MgSO4) and concentrated in vacuo. The crude product was purified by column chromatography (ISCO Companion™, 12 g column, 0-100% EtOAc/petroleum Ether) to give the sub-title compound as a yellow solid (100 mg, 0.24 mmol, 45%); 1H NMR (400 MHz, CDCl3) δ 1.75 (3H, d), 3.94 (3H, s), 5.88 (1H, q), 6.64 (1H, d), 6.94 (1H, s), 7.26-7.34 (2H, m), 7.38-7.44 (2H, m), 7.71 (1H, dd), 8.17 (1H, d), 8.44 (1H, d).

Aufarbeitung

  1. customThe reaction was partitioned between EtOAc (10 mL) and water (10 mL)
  2. extractionthe aqueous phase extracted with EtOAc (3×10 mL)
  3. dry with materialThe combined organic layers were dried (MgSO4)
  4. concentrationconcentrated in vacuo
  5. customThe crude product was purified by column chromatography (ISCO Companion™, 12 g column, 0-100% EtOAc/petroleum Ether)

Quellen und Nachweise

ORD-Eintrag
ord-eb4cd1b440ab45d2a081c16cb9ed3941
Quelldatensatz
uspto-grants-2014_06
Patentnummer
US08759389B1

Notizen zur Reaktion

Wird geladen…