反应详情

A 500 ml round bottom flask was charged with N-(4-bromo-2,6-diisopropylphenyl)-3-methoxybenzimidamide (19.73 g, 50.7 mmol), 2-chloroacetaldehyde (12.83 ml, 101 mmol), sodium bicarbonate (12.77 g, 152 mmole) and 2-Propanol (300 ml). The reaction was allowed to reflux for 16 hours. The reaction mixture was diluted with deionized water and extracted with ethyl acetate, the organic portion was combined and subjected to a column chromatography (SiO2 gel; 20% THF in heptane) to yield the desired product (16.47 g, 79%).

1. temperatureto reflux for 16 hours
2. extractionextracted with ethyl acetate