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Potassium Carbonate → Methyl 6-bromo-5-(2'-hydroxybiphenyl-4-yl)-1H-indole-3-carboxylate

HRID 1054729
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1054729
[Br:1][C:2]1[CH:10]=[C:9]2[C:5]([C:6]([C:11]([O:13][CH3:14])=[O:12])=[CH:7][NH:8]2)=[CH:4][C:3]=1I.CC1(C)C(C)(C)OB([C:24]2[CH:29]=[CH:28][C:27]([C:30]3[C:31]([OH:36])=[CH:32][CH:33]=[CH:34][CH:35]=3)=[CH:26][CH:25]=2)O1.C(=O)([O-])[O-].[K+].[K+]>C1(C)C=CC=CC=1.C(O)C.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]>[Br:1][C:2]1[CH:10]=[C:9]2[C:5]([C:6]([C:11]([O:13][CH3:14])=[O:12])=[CH:7][NH:8]2)=[CH:4][C:3]=1[C:24]1[CH:25]=[CH:26][C:27]([C:30]2[CH:35]=[CH:34][CH:33]=[CH:32][C:31]=2[OH:36])=[CH:28][CH:29]=1
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

7

Edukt 3

HCID 11430Potassium CarbonateHCID 592678134'-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-[1,1'-biphenyl]-2-olHCID 86698727methyl 6-bromo-5-iodo-1H-indole-3-carboxylate

Produkt 1

HCID 86698726Methyl 6-bromo-5-(2'-hydroxybiphenyl-4-yl)-1H-indole-3-carboxylate

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 44119782
Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)
Katalysator
HCID 702EthanolLösungsmittel
HCID 1140TolueneLösungsmittel

Reaktionsbedingungen

Temperatur
110 °C

Versuchsvorschrift

To a solution of methyl 6-bromo-5-iodo-1H-indole-3-carboxylate (100 mg, 0.26 mmol) in toluene (1 ml) and ethanol (1 ml) was added 4′-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)biphenyl-2-ol (70 mg, 0.24 mmol) followed by aqueous potassium carbonate (2 M, 1 ml, 2.0 mmol). The solvent was degassed by passing nitrogen through the system for 5 min. Pd(dppf)Cl2 (10 mg, 0.0053 mmol) was added then sealed and reaction heated to 110° C. The reaction was cooled then partitioned between water and ethyl acetate, then washed with brine, dried over sodium sulfate, filtered, concentrated in vacuo to afford the title compound mixed with unidentified byproducts as a dark tan solid (120 mg). TLC (50% EtOAc/Heptane) indicates no separation between product and byproducts. Crude was taken on to the next step without purification.

Aufarbeitung

  1. customThe solvent was degassed
  2. customfor 5 min
  3. customthen sealed
  4. customreaction
  5. temperatureThe reaction was cooled
  6. customthen partitioned between water and ethyl acetate
  7. washwashed with brine
  8. dry with materialdried over sodium sulfate
  9. filtrationfiltered
  10. concentrationconcentrated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-04b6f59dc49e42d5828d3e1dff5c0331
Quelldatensatz
uspto-grants-2016_07
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09394285B2

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