反应详情

A 1 l five-neck flask equipped with thermometer, reflux condenser, high-performance stirrer and dropping funnel was initially charged with 447 g (3 mol) of butyl ethylphosphonite (produced as in Example 3) and 168 g (3 mol) of 2-propenal. While stirring, 15 ml of sodium butoxide (30% strength in butanol) are added dropwise at such a rate that a reaction temperature of max. 120° C. becomes established. The crude product thus obtained is distilled in vacuo to obtain 550 g (89% of theory) of butyl ethyl-(2-formylethyl)phosphinate as colorless liquid.

1. customA 1 l five-neck flask equipped with thermometer
2. temperaturereflux condenser, high-performance stirrer
3. custom120° C.
4. customThe crude product thus obtained
5. distillationis distilled in vacuo