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

HRID 338386
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 338386
[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 (2M, 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-9eb44053fe3240b0ba4864908a5ed2fe
Quelldatensatz
uspto-grants-2014_11
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08889730B2

Notizen zur Reaktion

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