ketoesters followed by enzymatic saponification. The acids 1-3 were evaluated in vivo as inhibitors of the beta-oxidation step of the biosynthesis of (Z,E)-9,11-tetradecadienyl acetate, the major component of the sex pheromone of the Egyptian armyworm Spodoptera littoralis. Only, the 2,2- and 3,3-derivatives, i.e. those containing the two fluorine atoms at the positions involved in the chain-shortened
已经合成并充分表征了2,2-,3,3-和4,4-二
氟棕榈酸(1-3)。通过
氟化相应的二
硫缩醛保护的
酮酸酯,然后进行酶促皂化,可以制备酸2和3。在体内评估了酸1-3作为
生物合成(Z,E)-9,11-十四碳二烯基
乙酸酯的β-氧化步骤的
抑制剂的作用,该
乙酸酯是埃及夜蛾夜蛾斜纹夜蛾性信息素的主要成分。仅发现2,2-和3,3-衍
生物,即那些在链缩短步骤中所涉及的位置含有两个
氟原子的衍
生物是活泼的,其活度类似于或低于相应的单
氟酸。