The present invention relates to a method of producing a heterogeneous catalyst suitable for catalyzing Heck, Suzuki-Miyaura Sonogashira coupling and Buchwald-Hartwig reactions, comprising the steps of:
a) providing a macroporous carrier, said macroporous carrier consisting of a core and a plurality of ion exchange groups covalently bonded to the surface of said core, where at least 90% of the ions bound to said carrier are formate ions;
b) swelling said carrier in a polar solvent;
c) providing a palladium (II) salt;
d) suspending said carrier in an organic solvent thereby obtaining a suspension;
e) adding said palladium salt to said suspension and allowing the resulting mixture to react at a temperature within the range of 0-70° C. until said carrier has turned black;
f) washing said carrier in water;
g) drying said carrier under vacuum.
本发明涉及一种制备适用于催化Heck、Suzuki-Miyaura Sonogashira偶联和Buchwald-Hartwig反应的异质催化剂的方法,包括以下步骤:a)提供一种大孔载体,该大孔载体由一个核心和多个共价键结合到该核心表面的离子交换基团组成,其中至少90%的离子与该载体结合的是
甲酸根离子;b)在极性溶剂中膨胀该载体;c)提供一种
钯(II)盐;d)将该载体悬浮在有机溶剂中,从而获得悬浮液;e)将该
钯盐加入该悬浮液中,并在0-70℃的温度范围内让反应混合物反应,直到该载体变黑;f)用
水洗涤该载体;g)在真空下干燥该载体。