Water → HCID 67810950, Verbindung

HRID 2279893Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2279893
[CH3:1][C:2]1([CH3:14])[C:6]([CH3:8])([CH3:7])[O:5][B:4]([C:9]2[CH:10]=[N:11][NH:12][CH:13]=2)[O:3]1.C(=O)([O-])[O-].[Cs+].[Cs+].CS(O[CH2:26][C:27]1([CH2:30][O:31][CH2:32][C:33]2[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=2)[CH2:29][CH2:28]1)(=O)=O.O>CN(C=O)C>[CH2:32]([O:31][CH2:30][C:27]1([CH2:26][N:12]2[CH:13]=[C:9]([B:4]3[O:5][C:6]([CH3:7])([CH3:8])[C:2]([CH3:14])([CH3:1])[O:3]3)[CH:10]=[N:11]2)[CH2:29][CH2:28]1)[C:33]1[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=1

Komponenten

6

Edukt 4

HCID 962WaterHCID 10796Cesium carbonateHCID 27740104-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazoleHCID 86697829{1-[(Benzyloxy)methyl]cyclopropyl}methyl methanesulfonate2×

Produkt 1

HCID 67810950HCID 67810950, VerbindungAusbeute 73,4 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel2×

Versuchsvorschrift

A solution of (4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (8.62 g, 44.4 mmol) in DMF (12 mL) was treated with cesium carbonate (14.6 g, 44.4 mmol) and stirred at RT for 10 min. A solution of {1-[(benzyloxy)methyl]cyclopropyl}methyl methanesulfonate (Compound 63D, 12 g, 44.4 mmol) in DMF was added and heated to 70° C. for 24 hrs. The reaction mixture was cooled to RT, poured into water, extracted with ethyl acetate, dried over sodium sulfate, filtered and concentrated to give 12 g (73%) of required compound as a colorless gum which was used without further purification. 1H NMR (600 MHz, CDCl3) δ 7.78 (s, 1H), 7.68 (s, 1H), 7.25-7.34 (m, 5H), 4.48 (s, 2H), 4.15 (s, 2H), 3.16 (s, 2H), 1.33 (s, 12H), 0.71 (s, 2H), 0.56 (s, 2H).

Aufarbeitung

  1. temperatureheated to 70° C. for 24 hrs
  2. temperatureThe reaction mixture was cooled to RT
  3. extractionextracted with ethyl acetate
  4. dry with materialdried over sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated

Quellen und Nachweise

ORD-Eintrag
ord-63dff6083112412b9b9ff69934bbe560
Quelldatensatz
uspto-grants-2015_09
Patentnummer
US09133224B2

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