Peracetic Acid → HCID 14721902, Verbindung

HRID 847446Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 847446
CC(OO)=[O:3].[Cl:6][C:7]1[CH:24]=[CH:23][C:10]([CH2:11][C:12]2[CH2:16][CH2:15][C:14]([CH3:18])([CH3:17])[C:13]=2[C:19]([O:21][CH3:22])=[O:20])=[CH:9][CH:8]=1>C(O)(=O)C.ClC(Cl)Cl>[Cl:6][C:7]1[CH:8]=[CH:9][C:10]([CH2:11][C:12]23[O:3][C:13]2([C:19]([O:21][CH3:22])=[O:20])[C:14]([CH3:18])([CH3:17])[CH2:15][CH2:16]3)=[CH:23][CH:24]=1

Komponenten

5

Edukt 2

HCID 6585Peracetic Acid2×HCID 118327721-(4-Chlorobenzyl)-3,3-dimethyl-2-methoxycarbonylcyclopent-1-ene

Produkt 1

HCID 14721902HCID 14721902, Verbindung

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 176Acetic AcidLösungsmittelHCID 6212ChloroformLösungsmittel

Versuchsvorschrift

23.5 g (3 equivalents) "PROXITANE 4002" (Trade Mark: 36-40% (w/w) peracetic acid in acetic acid) were added to 9.8 g (35.1 mmols) 1-(4-chlorobenzyl)-3,3-dimethyl-2-methoxycarbonylcyclopent-1-ene prepared as described in Example 1 (f) in 90 ml trichloromethane. The resulting mixture was refluxed for 3 hours and then extracted twice with 50 ml aliquots of trichloromethane, backwashed once with 50 ml dilute aqueous sodium bicarbonate solution and twice with 50 ml aliquots of saturated aqueous sodium metabisulphite solution, washed with saturated aqueous sodium chloride solution, dried over anhydrous magnesium sulphate and flashed to give 12 g of a pale yellow oil which crystallised on cooling. Trituration in 30/40 petroleum gave 5.8 g 1-(4-chlorobenzyl)-1,2-epoxy-3,3-dimethyl-2-methoxy-carbonylcyclopentane as a white crystalline solid, m.pt. 86°-87° C. Yield 56%.

Aufarbeitung

  1. customprepared
  2. temperatureThe resulting mixture was refluxed for 3 hours
  3. extractionextracted twice with 50 ml aliquots of trichloromethane
  4. washwashed with saturated aqueous sodium chloride solution
  5. dry with materialdried over anhydrous magnesium sulphate

Quellen und Nachweise

ORD-Eintrag
ord-8f109f1e40fe4fa98624528e5c9e0ab3
Quelldatensatz
uspto-grants-1992_08
Patentnummer
US05142061

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