Hydrochloric Acid → HCID 54257517, Verbindung

HRID 343562Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 343562
[C:1]([C:5]1[CH:6]=[C:7]([C:10]#[C:11][C:12]2([C:19]3[CH:24]=[CH:23][C:22]([O:25][CH3:26])=[C:21]([O:27][CH:28]4[CH2:32][CH2:31][CH2:30][CH2:29]4)[CH:20]=3)[CH2:17][CH2:16][C:15](=[O:18])[CH2:14][CH2:13]2)[S:8][CH:9]=1)([O:3]C)=[O:2].[OH-].[K+].O.Cl>O1CCCC1.CO>[C:1]([C:5]1[CH:6]=[C:7]([C:10]#[C:11][C:12]2([C:19]3[CH:24]=[CH:23][C:22]([O:25][CH3:26])=[C:21]([O:27][CH:28]4[CH2:29][CH2:30][CH2:31][CH2:32]4)[CH:20]=3)[CH2:13][CH2:14][C:15](=[O:18])[CH2:16][CH2:17]2)[S:8][CH:9]=1)([OH:3])=[O:2]

Komponenten

7

Edukt 4

HCID 313Hydrochloric AcidHCID 962WaterHCID 14797Potassium HydroxideHCID 54202301HCID 54202301, Verbindung

Produkt 1

HCID 54257517HCID 54257517, VerbindungAusbeute 94 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 887MethanolLösungsmittelHCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

A solution of 4-(4-carbomethoxythien-2-ylethynyl)-4-(3-cyclopentyloxy-4-methoxyphenyl)cyclohexan-1-one (0.12 g, 0.427 mmol) and coarsely ground potassium hydroxide (0.045 g, 0.81 mmol) in tetrahydrofuran (2.5 mL), methanol (2.5 mL), and water (0.5 mL) was stirre at room temperature under an argon atmosphere for three days. The reaction was acidified (10% HCl), was extracted three times with 5:95 methanol:dichloromethane, was dried (magnesium sulfate) and was evaporated. Purification by flash chromatography, eluting with 0.25:2.5:97.5 acetic acid:methanol:dichloromethane, provided 4-(4-carboxythien-2-ylethynyl)-4-(3-cyclopentyloxy-4-methoxyphenyl)cyclohexan-1-one as an off- white foam (0.11 g, 94%), mp 75°-76° C. Anal. (C25H26O5S.0.25 H2O) calcd: C, 67.78; H, 6.03; found: C, 67.73; H, 5.80.

Aufarbeitung

  1. extractionwas extracted three times with 5:95 methanol
  2. dry with materialdichloromethane, was dried (magnesium sulfate)
  3. customwas evaporated
  4. customPurification by flash chromatography
  5. washeluting with 0.25:2.5:97.5 acetic acid

Quellen und Nachweise

ORD-Eintrag
ord-cd34720400d34bdaad20ff982379989f
Quelldatensatz
uspto-grants-1999_01
Patentnummer
US05861421

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