35148-18-6Relevant articles and documents
Method for synthesizing grassland spodoptera litura sex pheromone active ingredients
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, (2020/07/02)
The invention belongs to the technical field of green pesticide synthesis, and discloses a novel method for synthesizing grassland spodoptera litura sex pheromone active ingredients (Z)-9-dodecene-1-alcohol acetate, (Z)-9-tetradecene-1-alcohol acetate and (Z)-11-hexadecene-1-alcohol acetate. The method comprises the steps: using bromo-alcohol as a starting raw material; and firstly generating hydroxyl phosphonium salt with triphenylphosphine, then respectively carrying out Wittig coupling reaction with propionaldehyde and valeraldehyde to generate Z-type enol, and finally carrying out acetylation reaction with acetic anhydride to prepare (Z)-9-dodecene-1-alcohol acetate, (Z)-9-tetradecene-1-alcohol acetate and (Z)-11-hexadecene-1-alcohol acetate. According to the method, hydroxyl phosphonium salt is used for Wittig reaction, two steps of hydroxyl protection and deprotection are omitted, the synthetic route is simplified, and the method has the advantages of being environmentally friendly and the like.
SYNTHESIS OF PHEROMONES, III IMPROVED AND STEREOCONTROLLED SYNTHESES OF ISOMERIC MIXTURES OF 8-DODECEN-1-YL ACETATES
Vinczer, Peter,Juvanecz, Zoltan,Novak, Lajos,Szantay, Csaba
, p. 737 - 748 (2007/10/02)
Simple syntheses have been developed for the preparation of isomeric mixtures of 8-dodecen-1-yl acetates, which are active sex pheromones of many insect species.The Wittig reaction under modified conditions and reduction of the C-C triple bond were applied for the stereocontrolled formation of the C-C double bond.