Reacción #44520

ord-eddc73aee2034edd9b0b0809e72fd0fc

Disolventes

Condiciones de reacción

Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

  1. 1
    Concentraciónconcentrated to half volume
  2. 2
    Temperaturacooled
  3. 3
    Filtraciónfiltered

Procedimiento

A mixture of EXAMPLE 1A (8.8 g) and N,N-dimethyl-formamide dimethyl acetal (15.1 g) in toluene (170 mL) at 110° C. was stirred for 3 hours, concentrated to half volume, cooled, and filtered. 1H NMR (300 MHz, CDCl3) δ 8.40 (s, 1H), 7.42 (s, 1H), 3.99 (q, 2H), 3.05 (d, 6H), 2.92 (b, 6H), 2.65 (s, 3H), 1.04 (t, 3H).

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US07737159B2uspto-grants-2010_06