Reacción #6867

ord-6cbd47be74554fafb353de8fa6d07f48

Disolventes

Condiciones de reacción

Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

  1. 1
    workup.STIRRINGthe resulting mixture was stirred at room temperature for about 23 hours
  2. 2
    FiltraciónThe product was filtered off
  3. 3
    Lavadowashed with cold water (75 ml)
  4. 4
    Otrotriturated with p-dioxane (30 ml)
  5. 5
    FiltraciónThe product was filtered off
  6. 6
    Otrodried under reduced pressure

Procedimiento

4-Hydroxymethylimidazole hydrochloride (compound xiii where R2 is H) (2.50 g, 18.6 mmol) and Et3N (2.59 ml, 18.6 mmol) were combined in DMF (30 ml) and stirred at room temperature. A solution of chlorotriphenylmethane (5.19 g, 18.6 mmol) in DMF (25 ml) was added dropwise at room temperature and the resulting mixture was stirred at room temperature for about 23 hours and then poured into ice water (300 ml). The product was filtered off, washed with cold water (75 ml) and triturated with p-dioxane (30 ml). The product was filtered off and dried under reduced pressure to yield product (4.96 g, 78%). NMR (300 MHZ, DMSO-d6, 30° C.) 7.3–7.5 (9H, m), 7.25–7.35 (1H, d), 7.0–7.2 (6H, m), 6.7–6.75 (1H, s), 4.15–4.2 (2H, m).

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US07084135B1uspto-grants-2006_08