Some new 1,4-distyrylbenzene derivatives were synthesized by using immobilized palladium nanoparticles on silica-bonded N-propyl morpholine (PNP-SBNPM) as a heterogeneous catalyst. These one-pot reactions afforded a range of stereoselective, symmetrical (E)-1,4-distyrylbenzene derivatives with high yields (78-90%). The green catalyst system is recyclable and allows facile product isolation. The recycled catalyst could be reused six times without appreciable loss of catalytic activity.
一些新的1,4-
二苯乙烯衍
生物通过使用固定化的
钯纳米颗粒在
硅基结合的N-丙基吗啉(
PNP-S
BNPM)作为异相催化剂合成。这些一锅反应生成了一系列立体选择性对称的(E)-1,4-
二苯乙烯衍
生物,并且产率高(78-90%)。该绿色催化剂系统可回收,便于产品分离。回收的催化剂可以重复使用六次,且催化活性没有明显下降。