An ammonium-tagged ruthenium complex, 8, was deposited on several widely available commercial solid materials such as silica gel, alumina, cotton, filter paper, iron powder or palladium on carbon. The resulting catalysts were tested in toluene or ethyl acetate, and found to afford metathesis products in high yield and with extremely low ruthenium contamination. Depending on the support used, immobilised catalyst 8 shows also additional traits, such as the possibility of being magnetically separated or the use for metathesis and subsequent reduction of the obtained double bond in one pot.
一种
氨基标记的
钌配合物,8,被沉积在几种广泛可获得的商业固体材料上,如
硅胶、氧化铝、棉布、滤纸、
铁粉或碳上的
钯。得到的催化剂在
甲苯或
乙酸乙酯中进行测试,发现产物产率高,
钌污染极低。根据所使用的支撑物,固定化催化剂8还显示出额外特性,如可能被磁性分离或用于一锅法进行烯烃交换和随后还原所得双键。