Ethanol → HCID 59255416, Verbindung

HRID 640159

Reaktionsgleichung

Reaktionsgleichung von HRID 640159
I[C:2]1[C:3]([NH2:9])=[N:4][C:5]([NH2:8])=[CH:6][CH:7]=1.C(O)C.C(=O)([O-])[O-].[Na+].[Na+].CC1(C)C(C)(C)OB([C:27]2[CH:28]=[N:29][N:30]([C:32]([C:45]3[CH:50]=[CH:49][CH:48]=[CH:47][CH:46]=3)([C:39]3[CH:44]=[CH:43][CH:42]=[CH:41][CH:40]=3)[C:33]3[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=3)[CH:31]=2)O1>C1(C)C=CC=CC=1.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.C(OCC)(=O)C.O>[C:32]([N:30]1[CH:31]=[C:27]([C:2]2[C:3]([NH2:9])=[N:4][C:5]([NH2:8])=[CH:6][CH:7]=2)[CH:28]=[N:29]1)([C:39]1[CH:40]=[CH:41][CH:42]=[CH:43][CH:44]=1)([C:45]1[CH:50]=[CH:49][CH:48]=[CH:47][CH:46]=1)[C:33]1[CH:34]=[CH:35][CH:36]=[CH:37][CH:38]=1

Komponenten

9

Edukt 4

HCID 702EthanolHCID 10340Sodium CarbonateHCID 4762183-Iodopyridine-2,6-diamineHCID 457896834-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(triphenylmethyl)-1H-pyrazole

Produkt 1

HCID 59255416HCID 59255416, VerbindungAusbeute 76 %

Reagenzien, Katalysatoren, Lösungsmittel 4

HCID 178418397HCID 178418397, VerbindungKatalysatorHCID 962WaterLösungsmittelHCID 1140TolueneLösungsmittelHCID 8857Ethyl AcetateLösungsmittel

Reaktionsbedingungen

Temperatur
95 °C

Versuchsvorschrift

To a solution of 3-iodo-pyridin-2,6-diamine (3.3 g, 7.74 mmol, purity: 70%) described in Manufacturing Example 13-1-1 in toluene (50 mL) were added ethanol (25 mL), 2 N aqueous sodium carbonate solution (12.5 mL), 4-(4,4,5,5-tetramethyl-(1,3,2)dioxaborolan-2-yl)-1-trityl-1H-pyrazole (3.3 g, 7.56 mmol) described in Manufacturing Example 32-1-2 and tetrakis(triphenylphosphine)palladium (0) (1.02 g, 0.88 mmol) under nitrogen atmosphere, which was stirred for 2.5 hours at 95° C. Water and ethyl acetate were added to the reaction mixture at room temperature, which was then filtered through a Celite pad, and the filtrate was partitioned into water and ethyl acetate. The organic layer was washed with water and saturated aqueous sodium chloride, and dried over anhydrous magnesium sulfate, and the solvent was evaporated under a reduced pressure. The residue was purified by NH silica gel column chromatography (ethyl acetate:heptane=1:2 then 2:1 then 5:1) to obtain the title compound (2.4 g, 73%).

Aufarbeitung

  1. filtrationwhich was then filtered through a Celite pad
  2. customthe filtrate was partitioned into water and ethyl acetate
  3. washThe organic layer was washed with water and saturated aqueous sodium chloride
  4. dry with materialdried over anhydrous magnesium sulfate
  5. customthe solvent was evaporated under a reduced pressure
  6. customThe residue was purified by NH silica gel column chromatography (ethyl acetate

Quellen und Nachweise

ORD-Eintrag
ord-81433e6a3712475b82ba4304d22e1570
Quelldatensatz
uspto-grants-2010_04
Patentnummer
US07691882B2

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