Reacción #72528

ord-ac96ec0ecba344c39e16f6c953d0cc35

Disolventes

Condiciones de reacción

Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

  1. 1
    TemperaturaThe solution is cooled to 0° C.
  2. 2
    ExtracciónAfter extraction with DCM
  3. 3
    Lavadothe organic phases are washed with water and with saturated aqueous NaCl solution
  4. 4
    Secadodried over sodium sulphate
  5. 5
    Filtraciónfiltered
  6. 6
    Otroevaporated to dryness

Procedimiento

To a solution of morpholine (22 mmoles) in acetic acid (10 ml) there is added pyrrole (20 mmoles) dropwise at 0° C. Formaldehyde (37% aq., 20 mmoles) is then added dropwise. The reaction mixture is stirred for 2 hours at ambient temperature. The solution is cooled to 0° C. and is brought to alkaline pH (10-11) using 20% aqueous NaOH solution. After extraction with DCM, the organic phases are washed with water and with saturated aqueous NaCl solution, dried over sodium sulphate, filtered and evaporated to dryness to yield the title product in the form of a white solid which is used directly in the next Step.

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US08541412B2uspto-grants-2013_09