反应详情

温度

25 °C

A 22.76 g (0.080 mol) portion of N-dodecanoyl-N′,N′-dimethyl-1,3-diaminopropane and 120 ml of diethyl ether were put into a flask, and 18.46 g (0.080 mol) of geranyl chloroacetate was added thereto at 25° C. spending 5 minutes. The reaction mixture was stirred at 25° C. for 24 hours, and disappearance of the most part of chloroacetate was confirmed by 1H-NMR. Next, the reaction mixture was slowly added dropwise to 600 ml of hexane which was ice-cooled and vigorously stirred, spending 10 minutes, to effect precipitation of the product as a white solid. Thereafter, in the same manner as described in Inventive Example 1, the title compound (to be referred to as betaine ester (3) hereinafter) was obtained as a light yellow viscous oil. Yield 38.50 g (0.0747 mol; yield 93.4%).

1. temperaturecooled
2. stirringvigorously stirred
3. waitspending 10 minutes
4. customprecipitation of the product as a white solid