双齿有机膦二茂铁钯(Ⅱ)配合物的合成和催化活性  

Syntheses and Catalytic Activities of Palladium Complexes of Organic Bidentate Phosphine Ferrocene

作　　者：靳晓娟 张阳阳 左川 韩旭 冯洋洋 高安丽[1] 余娟[1] 刘伟平[1] Jin Xiaojuan;Zhang Yangyang;Zuo Chuan;Han Xu;Feng Yangyang;Gao Anli;Yu Juan;Liu Weiping(State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming Institute of Precious Metals, Kunming 650106;Sino-Platinum Metals Co. Ltd, Kunming 650106)

机构地区：[1]昆明贵金属研究所稀贵金属综合利用新技术国家重点实验室,昆明650106 [2]贵研铂业股份有限公司,昆明650106

出　　处：《化学通报》2018年第2期165-169,共5页Chemistry

基　　金：国家科技支撑计划项目(2012BAE06B08);云南省科技人才计划项目(2015HC022)资助

摘　　要：以1,1'-双(二苯基膦)二茂铁(dppf)、1,1'-双(二叔丁基膦)二茂铁(dtbpf)为配体,合成了一类双齿有机膦二茂铁钯(Ⅱ)配合物[(dppf)PdCl_2]、[(dtbpf)PdCl_2]、[(dppf)PdBr_2]和[(dtbpf)PdBr_2],通过核磁共振对配合物进行化学结构表征。评价了它们对Suzuki偶联反应、Sonogashira偶联反应、Heck偶联反应以及2-羟基吡啶与硼酸试剂之间的偶联反应的催化作用。结果表明,配合物化学性质稳定,在非保护气氛下能高效地催化一系列偶联反应。催化剂在单边Sonogashira偶联反应中不但具有较高的催化活性,而且有很好的选择性,显示出很好的应用前景。Four palladium（II） complexes of organic bidentate phosphine ferrocene, [ （dppf） PdC12 ], [ （dtbpf） PdCI2 ], [ （dppf）PdBr2 1, [ （dtbpf）PdBr2 ], were prepared via a direct reaction in an inert atmosphere using Na2 PdX4 （ X = C1, Br） as the palladium precursor and the corresponding phosphine ferrocene as the ligand （ dppf = 1 , 1 ＇-bis（ dipheny-phosphino ） ferrocene, dtbpf = 1,1 ＇-bis （di-tert-butylphosphino） ferrocene ）. The complexes were characterized by 1H NMR. The catalytic performance of the complexes was evaluated not only in three well-kunown coupling reactions （Suzuki, Sonogashira and Heck coupling reaction） but also in the coupling reaction between 2- hydroxypyridine and boronic acid reagent. The results showed that the complexes are stable and can efficiently catalyze a series of coupling reactions in a non-protective atmosphere. The catalyst not only has high catalytic activity in unilateral Sonogashira coupling reaction, but also has good selectivity, showing a good application prospect.

关 键 词：双齿有机膦二茂铁钯配合物 合成 催化活性 

分 类 号：O641.4[理学—物理化学]