S-烯丙基硫赶磷酸酯在SiO_2上的合成

Synthesis of S-Allyl Thiolophosphates on SiO_2

探讨了O 烯丙基硫逐磷酸酯热重排制备S 烯丙基硫赶磷酸酯的反应条件 ,结果表明 :反应在SiO2 上进行几乎可定量地完成 .运用这一合成方法 ,制备了 14个不对称结构的新型硫赶磷酸酯 ,所有的化合物均经IR ,1HNMR ,3 1PNMR及元素分析表征 .生物活性试验显示 5a ,5e ,5h ,5i及 5k有良好的杀虫活性 .

The thermal [3,3]-sigmatropic type rearrangement of O-allyl thionophosphates to provide S-allyl thiolophosphates was studied. The tests showed O-allyl thionophosphates were easily converted to their thiol isomers on SiO 2 in quantitative yields. The fourteen new compounds were synthesized and identified by IR, 1H NMR, 31P NMR and elemental analysis. The preliminary tests showed that compounds 5a, 5e, 5h, 5i and 5k had excellent insecticidal activity.