Reacción #61197

Ecuación de reacción

imidazole-4-carbonitrile

2-(trimethylsilyl)ethoxymethyl chloride

K2CO3

acetone

→

title compound

Rendimiento 70.0%

1-(2-Trimethylsilanyl-ethoxymethyl)-1H-imidazole-4-carbonitrile

Rendimiento 70.0%

Disolventes

EtOAc

Condiciones de reacción

Tratamiento posterior

1. 1
   Lavadowashed with water (20 mL) and brine (20 mL)
2. 2
   Secadothe organic layer dried over MgSO4
3. 3
   LavadoThe crude product was eluted from a 20-g SPE cartridge (silica) with 30% EtOAc/hexane

Procedimiento

A flask charged with imidazole-4-carbonitrile (0.50 g, 5.2 mmol) (Synthesis, 677 (2003)) 2-(trimethylsilyl)ethoxymethyl chloride (SEMCl) (0.95 mL, 5.3 mmol), K2CO3 (1.40 g, 10.4 mmol), and acetone (5 mL) was stirred for 10 h at RT. The mixture was diluted with EtOAc (20 mL) and washed with water (20 mL) and brine (20 mL) and the organic layer dried over MgSO4. The crude product was eluted from a 20-g SPE cartridge (silica) with 30% EtOAc/hexane to give 0.80 g (70%) of the title compound as a colorless oil. Mass spectrum (CI (CH4), m/z) Calcd. for C10H17N3OSi, 224.1 (M+H), found 224.1. b) 2-Bromo-1-(2-trimethylsilanyl-ethoxymethyl)-1H-imidazole-4-carbonitrile

Fuente