m-Chloroperbenzoic acid → 1-Acetyloxy-3-ethylcyclobutane

HRID 1649190

Reaktionsgleichung

Reaktionsgleichung von HRID 1649190
C([CH:4]1[CH2:7][CH:6]([CH2:8][CH3:9])[CH2:5]1)(=O)C.ClC1C=CC=[C:13]([C:17]([O:19]O)=[O:18])C=1>C(Cl)(Cl)Cl>[C:17]([O:19][CH:4]1[CH2:5][CH:6]([CH2:8][CH3:9])[CH2:7]1)(=[O:18])[CH3:13]

Komponenten

4

Versuchsvorschrift

A solution of 5.5 g of the 1-acetyl-3-ethylcyclobutane, and 10.7 g of m-chloroperbenzoic acid in 107 ml chloroform was allowed to stand for five days in the dark. The reaction mixture was cooled via external ice cooling and filtered. The filtrate was diluted with CHCl3 and washed with 10 percent aqueous sodium thiosulfate, 10 percent aqueous sodium carbonate and brine, dried over Na2SO4, and filtered. The solution was subjected to distillation (aspirator vacuum) to afford 3.55 g of 1-acetoxy-3-ethylcyclobutane, as a clear oil (bp 65°-67°). The material had the following spectral characteristics: nmr (CDCl3) δ 0.82 (3H, t, J=7.0 Hz) 1.10 and 1.12, (same side product noted in the 1-acetyl compound spectra), 1.0-2.5 (7H, m), 2.01 (3H, s) and 4.9 (1H, m); ir (CHCl3) 950, 1040, 1085, 1205, 1250, 1375, 1460, 1720, 2870, 2925 and 2960 cm-1 along with trace of 3200-3600 (broad) and 3600 cm-1 for the same side product noted in the 1-acetyl the compound spectra.

Aufarbeitung

  1. temperatureThe reaction mixture was cooled via external ice cooling
  2. filtrationfiltered
  3. additionThe filtrate was diluted with CHCl3
  4. washwashed with 10 percent aqueous sodium thiosulfate, 10 percent aqueous sodium carbonate and brine
  5. dry with materialdried over Na2SO4
  6. filtrationfiltered
  7. distillationThe solution was subjected to distillation (aspirator vacuum)

Quellen und Nachweise

ORD-Eintrag
ord-3d59eb35cc3c436a81023c4e4cf669e7
Quelldatensatz
uspto-grants-1983_11
Patentnummer
US04415592

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