乙酸(1-二茂铁基乙基)酯(记为配体2)与1-异丙基咪唑经过季铵化反应,制备出具有大空间位阻和富电子的配体1-(1二茂铁基乙基)-3-异丙基-1-咪唑碘盐(记为配体1),收率为88％.利用1H NMR、13C NMR对其结构进行了表征,并进一步考察了体系Pd (OAc)2/配体1催化4-甲氧基溴苯与苯硼酸的Suzuki-Miyaura偶联反应活性.实验发现:配体1在催化反应过程中可以有效地稳定Pd,在二氧六环反应介质中,碳酸铯为碱,1％Pd用量的条件下可以有效催化Suzuki Miyaura偶联反应,加热回流3h,收率达93％.
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