Methanol → [2-(2-Isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulen-8-yl]-methanol

HRID 1848998Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1848998
C[O:2][C:3]([C:5]1[CH:26]=[CH:25][C:8]2[C:9]3[N:10]=[C:11]([C:17]4[N:18]([CH:22]([CH3:24])[CH3:23])[N:19]=[CH:20][N:21]=4)[S:12][C:13]=3[CH2:14][CH2:15][O:16][C:7]=2[CH:6]=1)=O.[H-].C([Al+]CC(C)C)C(C)C.CO.C(C(C(C([O-])=O)O)O)([O-])=O.[Na+].[K+]>C1COCC1>[CH:22]([N:18]1[C:17]([C:11]2[S:12][C:13]3[CH2:14][CH2:15][O:16][C:7]4[CH:6]=[C:5]([CH2:3][OH:2])[CH:26]=[CH:25][C:8]=4[C:9]=3[N:10]=2)=[N:21][CH:20]=[N:19]1)([CH3:24])[CH3:23]

Komponenten

6

Edukt 4

HCID 887MethanolHCID 9855836Potassium sodium tartarateHCID 21225700DiisobutylaluminumhydrideHCID 582040702-(2-Isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulene-8-carboxylic acid methyl ester

Produkt 1

HCID 53234283[2-(2-Isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulen-8-yl]-methanolAusbeute 99,2 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Reaktionsbedingungen

Temperatur
0 °C

Versuchsvorschrift

To a suspension of 2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulene-8-carboxylic acid methyl ester (778 mg, 2.1 mmol) in THF (20 mL) at −78° C. under nitrogen was added dropwise diisobutyl aluminium hydride (1.5M in toluene, 4.2 mL, 6.3 mmol) and the reaction mixture was stirred at 0° C. for 2 hours. MeOH (10 mL) was added cautiously followed by an aqueous 1M potassium sodium tartrate solution (7 mL) at RT. The mixture was concentrated in vacuo to remove organic solvent and the aqueous phase was extracted with DCM (×3). The combined organic extracts were dried (MgSO4) and concentrated in vacuo to give the title compound as an off-white solid (713 mg, 99%). LCMS: RT=4.14 min, [M+H]+=343

Aufarbeitung

  1. concentrationThe mixture was concentrated in vacuo
  2. customto remove organic solvent
  3. extractionthe aqueous phase was extracted with DCM (×3)
  4. dry with materialThe combined organic extracts were dried (MgSO4)
  5. concentrationconcentrated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-4db4856b7cf14f31ae916aebffc5e8bb
Quelldatensatz
uspto-grants-2015_02
Patentnummer
US08952043B2

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