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近几年来,我国曾合成了一系列昆虫保幼激素,用于蚕丝增产。为了解决农业上防治害虫的高效低毒药物,本文研究了一类新的具有昆虫保幼激素活性的类似物JS-31——3,7,11-三甲基-2,4-十二碳二烯酸酯的合成。1975年我单位合成了少量的JS-23——3,7,11-三甲基-2,4-十二碳二烯酸-2-丙炔酯;该化合物合成中所需的原料2-丙炔醇当时不易得到,本文改用2-丙烯醇以代替2-丙炔醇,并在合成方法上作了一些必要的改进,制得了JS-31,初步用于防治棉蚜虫及蚕丝增产等方面取得了满意的结果。
In recent years, China has synthesized a series of insect juvenile hormone for silk production. In order to solve the problem of high efficiency and low toxicity in pest control in agriculture, a new class of JS-31, 3,7,11-trimethyl-2,4-dodecane Synthesis of dienoate. 1975, my unit synthesized a small amount of JS-23 - 3,7,11-trimethyl-2,4-dodecadienoate-2-propynyl ester; the synthesis of the desired raw materials 2- Propargyl alcohol was not easy to get at that time. In this paper, 2-propenol was used instead of 2-propargyl alcohol, and some necessary improvements were made in the synthetic method. JS-31 was initially prepared for the control of cotton aphid and silk production Achieved satisfactory results.