Dang Wan-bin
2007
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Journal
Journal of Beijing Technology and Business University
Abstract
Catalyzed by anhydrous sodium ethoxide,diethyl malonate reacted with allyl chloride to give diethyl allylmalonate(Ⅰ);then through saponification and decarboxylation of(Ⅰ),the flavor of 4-pentenoic acid(Ⅱ) was obtained.Following the optimal technology,the mole ratio of diethyl malonate to allyl chloride in 1.2∶1,the refluxing time of 3 h;and the saponification time of 5 h;the overall yield of 4-pentenoic acid was up to 53.2%.The structure of 4-pentenoic acid was confirmed by MS,IR and 1HNMR.