Reaktion #1763178

ord-4a6c1114470a47deadac8d43de1917a9

Lösungsmittel

Reaktionsbedingungen

Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    Filtrationfiltered
  2. 2
    Einengenconcentrated
  3. 3
    workup.DISSOLUTIONThe residue was redissolved in DCM/n-hexane
  4. 4
    Einengenconcentrated under reduced pressure
  5. 5
    SonstigeThe crude oil was purified by flash chromatography (Biotage SP1, EtOAc/n-hexane from 5 to 10%)

Vorschrift

To a solution of 5-hexenoic acid (15.2 mL, 0.131 mol) in DCM (375 mL), cooled to 0° C., tert-butanol (176 mL, 1.84 mol) and then 4-dimethylaminopyridine (3.21 g, 26.3 mmol) were added. The mixture was stirred at room temperature for 22 hrs, filtered and concentrated. The residue was redissolved in DCM/n-hexane and concentrated under reduced pressure. The crude oil was purified by flash chromatography (Biotage SP1, EtOAc/n-hexane from 5 to 10%), affording the title product.

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US08003811B2uspto-grants-2011_08