In this paper, 3 (2 chloro 5 pyridylmethyl)amino 2 cyano 3 methylthio ethyl acrylates 3 were synthesized. By the reaction of 3 as an intermediate with amines, 5 new 3 (substituted)amino 3 (2 chloro 5 pyridylmethyl)ami...In this paper, 3 (2 chloro 5 pyridylmethyl)amino 2 cyano 3 methylthio ethyl acrylates 3 were synthesized. By the reaction of 3 as an intermediate with amines, 5 new 3 (substituted)amino 3 (2 chloro 5 pyridylmethyl)amino 2 cyano ethyl acrylates were prepared. When 3 reacted with hydrazine, the corresponding cyclic compound 4f was obtained. The preliminary bioassays showed that compounds 3 has good herbicidal activity.展开更多
通过Heck反应,以4,4′-二碘联苯和丙烯酸为原料,壳聚糖负载钯为催化剂,合成了3,3′-(1,1′-二苯基-4,4′-二基)-二丙烯酸.考察了反应温度、时间、原料配比等因素对产率的影响.结果表明最佳反应条件为:反应温度为100℃,时间为20h,原料配...通过Heck反应,以4,4′-二碘联苯和丙烯酸为原料,壳聚糖负载钯为催化剂,合成了3,3′-(1,1′-二苯基-4,4′-二基)-二丙烯酸.考察了反应温度、时间、原料配比等因素对产率的影响.结果表明最佳反应条件为:反应温度为100℃,时间为20h,原料配比为1∶3.测试了壳聚糖负载钯催化剂的重复使用性能,并用IR、1 H NMR和MS对产物进行了表征.展开更多
文摘In this paper, 3 (2 chloro 5 pyridylmethyl)amino 2 cyano 3 methylthio ethyl acrylates 3 were synthesized. By the reaction of 3 as an intermediate with amines, 5 new 3 (substituted)amino 3 (2 chloro 5 pyridylmethyl)amino 2 cyano ethyl acrylates were prepared. When 3 reacted with hydrazine, the corresponding cyclic compound 4f was obtained. The preliminary bioassays showed that compounds 3 has good herbicidal activity.
文摘通过Heck反应,以4,4′-二碘联苯和丙烯酸为原料,壳聚糖负载钯为催化剂,合成了3,3′-(1,1′-二苯基-4,4′-二基)-二丙烯酸.考察了反应温度、时间、原料配比等因素对产率的影响.结果表明最佳反应条件为:反应温度为100℃,时间为20h,原料配比为1∶3.测试了壳聚糖负载钯催化剂的重复使用性能,并用IR、1 H NMR和MS对产物进行了表征.