Reacción #69425

ord-e18e156ee1644ee4a48f6aade48e5544

Disolventes

Condiciones de reacción

Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

  1. 1
    Temperaturawas heated
  2. 2
    Temperaturato reflux for 12 h
  3. 3
    ConcentraciónThe reaction mixture was then concentrated
  4. 4
    Otrothe residue so obtained
  5. 5
    Otrowas purified by silica gel column chromatography

Procedimiento

A mixture containing 46 (0.294 g, 0.757 mmol), paratoluensolfonic acid (0.005 g), i-butanol (1.0 mL) and benzene (4.0 mL) was heated to reflux for 12 h. The reaction mixture was then concentrated and the residue so obtained was purified by silica gel column chromatography using 5% of methanol in dichloromethane as eluent, obtaining the desired compound. Yield: 81%.

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US08530520B2uspto-grants-2013_09