Sodium Carbonate → 3'-Methylene-2',3',6,7,8,9-hexahydrospiro[imidazo[1,5-a]azepine-5,1'-indene]-5'-carbonitrile

HRID 76906Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 76906
[CH2:1]([C:4]1([C:14]2[CH:21]=[CH:20][C:17]([C:18]#[N:19])=[CH:16][C:15]=2Br)[N:10]2[CH:11]=[N:12][CH:13]=[C:9]2[CH2:8][CH2:7][CH2:6][CH2:5]1)[CH:2]=[CH2:3].C(=O)([O-])[O-].[Na+].[Na+].FC1C=CC(B(O)O)=CC=1>[Pd].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.COCCOC>[CH2:3]=[C:2]1[C:21]2[C:14](=[CH:15][CH:16]=[C:17]([C:18]#[N:19])[CH:20]=2)[C:4]2([N:10]3[CH:11]=[N:12][CH:13]=[C:9]3[CH2:8][CH2:7][CH2:6][CH2:5]2)[CH2:1]1

Komponenten

6

Edukt 3

HCID 10340Sodium CarbonateHCID 2856454-Fluorophenylboronic acidHCID 588270494-(5-allyl-6,7,8,9-tetrahydro-5H-imidazo[1,5-a]azepin-5-yl)-3-bromobenzonitrile

Produkt 1

HCID 588270643'-Methylene-2',3',6,7,8,9-hexahydrospiro[imidazo[1,5-a]azepine-5,1'-indene]-5'-carbonitrile

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 11979704Tetrakis(triphenylphosphine)palladiumKatalysatorHCID 80711,2-DimethoxyethaneLösungsmittel

Reaktionsbedingungen

Temperatur
130 °C

Versuchsvorschrift

To 4-(5-allyl-6,7,8,9-tetrahydro-5H-imidazo[1,5-a]azepin-5-yl)-3-bromobenzonitrile (0.275 g, 0.76 mmol) is added DME (3.0 mL). To this solution is added aqueous 2M sodium carbonate (1.5 ml, 3.0 mmol) followed by 4-fluorophenylboronic acid (0.269 g, 1.92 mmol). This mixture is transferred to a microwave safe vial Tetrakis(triphenylphosphine) palladium(0) (0.04 g, 0.034 mmol) is added, and the vessel sealed. The mixture is stirred briefly (30 seconds) and place in a microwave for 25 minutes at 130° C. The vial is allowed to cool and unsealed. The mixture is extracted with ethyl acetate and washed with saturated aqueous sodium bicarbonate. The separated organic layer is concentrated in vacuo. The resulting material is subjected to two sequential chromatography procedures (1: Silica gel, 1:50 to 1:25 methanol:methylene chloride. 2: Reverse phase HPLC, gradient 10-95% % Acetonitrile:Water, pH2, over 8 minutes) to give the product. MS (ESI) m/z 276 (M+11); 1H NMR (400 MHz, CDCl3) δ ppm 1.47-1.61 (m, 1H), 1.85-1.99 (m, 1H), 2.01-2.16 (m, 3H), 2.25-2.36 (m, 1H), 2.63 (t, 1H), 2.99 (d, J=16.4 Hz, 1H), 3.10 (dd, J=15.5, 5.7 Hz, 1H), 3.23-3.32 (m, 1H), 5.21-5.25 (m, 1H), 5.62-5.67 (m, 1H), 6.50 (s, 1H), 6.78 (s, 1H), 7.54-7.58 (m, 1H), 7.66-7.70 (m, 1H), 7.88 (s, 1H).

Aufarbeitung

  1. additionis added
  2. customthe vessel sealed
  3. temperatureto cool
  4. extractionThe mixture is extracted with ethyl acetate
  5. washwashed with saturated aqueous sodium bicarbonate
  6. concentrationThe separated organic layer is concentrated in vacuo
  7. customis subjected to two sequential chromatography procedures (1: Silica gel, 1:50 to 1:25 methanol:methylene chloride. 2: Reverse phase HPLC, gradient 10-95% % Acetonitrile:Water, pH2, over 8 minutes)
  8. customto give the product

Quellen und Nachweise

ORD-Eintrag
ord-ca1babbab27444ebb106233ae63c6c75
Quelldatensatz
uspto-grants-2014_09
Patentnummer
US08835646B2

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