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Sodium Hydroxide → 2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulen-8-ol

HRID 886490
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 886490
CC1(C)COB([C:8]2[CH:29]=[CH:28][C:11]3[C:12]4[N:16]([CH2:17][CH2:18][O:19][C:10]=3[CH:9]=2)[CH:15]=[C:14]([C:20]2[N:21]([CH:25]([CH3:27])[CH3:26])[N:22]=[CH:23][N:24]=2)[N:13]=4)OC1.Cl.N[OH:33].[OH-].[Na+]>[Cl-].[NH4+]>[CH:25]([N:21]1[C:20]([C:14]2[N:13]=[C:12]3[C:11]4[CH:28]=[CH:29][C:8]([OH:33])=[CH:9][C:10]=4[O:19][CH2:18][CH2:17][N:16]3[CH:15]=2)=[N:24][CH:23]=[N:22]1)([CH3:27])[CH3:26]
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Komponenten

5

Edukt 3

HCID 14798Sodium Hydroxide2×HCID 443297Hydroxyamine hydrochloride2×HCID 582047108-(5,5-dimethyl-[1,3,2]dioxaborinan-2-yl)-2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulene

Produkt 1

HCID 1360309202-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulen-8-olAusbeute 127,7 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 25517Ammonium ChlorideLösungsmittel

Versuchsvorschrift

To a solution of 8-(5,5-dimethyl-[1,3,2]dioxaborinan-2-yl)-2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulene (473 mg, 1.16 mmol) in IMS (10 mL) was added hydroxylamine hydrochloride (242 mg, 0.39 mmol) and sodium hydroxide (186 mg, 4.65 mmol) and the reaction mixture stirred at RT for 18 h. Further quantities of hydroxylamine hydrochloride (242 mg, 0.39 mmol) and sodium hydroxide (186 mg, 4.65 mmol) were added and stirring continued for 3 h. The reaction mixture was diluted with ammonium chloride solution (20 mL, saturated) and extracted with ethyl acetate (3×10 mL). The combined organic extracts were dried (MgSO4), concentrated in vacuo and the resultant residue subjected to flash chromatography (SiO2, gradient 0-5% methanol in DCM) to yield 490 as a white solid (155 mg, 43%). 1H NMR (400 MHz, CDCl3) δ 8.29 (1H, d, J=8.4 Hz), 7.88 (1H, s), 7.59 (1H, s), 6.64 (1H, dd, J=8.4, 2.6 Hz), 6.48 (1H, d, J=2.6 Hz), 5.99 (1H, sept, J=6.7 Hz), 4.44-4.32 (4H, m), 1.58 (6H, d, J=6.7 Hz).

Aufarbeitung

  1. stirringstirring
  2. waitcontinued for 3 h
  3. extractionextracted with ethyl acetate (3×10 mL)
  4. dry with materialThe combined organic extracts were dried (MgSO4)
  5. concentrationconcentrated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-0cfa83208a214d8c995ccc438ba82279
Quelldatensatz
uspto-grants-2012_08
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08242104B2

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