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Catalytic Activity of a Zr MOF Containing POCOP-Pd Pincer Complexes
Organometallics ( IF 2.8 ) Pub Date : 2020-06-02 , DOI: 10.1021/acs.organomet.0c00164
Abebu A. Kassie 1 , Casey R. Wade 1
Affiliation  

A metal–organic framework assembled from POCOP-Pd pincer complex metallolinkers (1-PdBF4, Zr6O4(OH)4(L-PdMeCN)3(BF4)3, L = (2,6-(OPAr2)2C6H3, Ar = p-C6H4CO2) has been generated via postsynthetic oxidative I/BF4 ligand exchange with NOBF4. 1-PdBF4 catalyzes a range of organic transformations, including transfer hydrogenation of unsaturated organic substrates, terminal alkyne hydration, and intramolecular hydroarylation of alkynes. The homogeneous analogue, tBu4POCOP-PdBF4, shows poor catalytic activity for transfer hydrogenation and alkyne hydration and decomposes under the catalytic reaction conditions. Solubility limitations and catalyst deactivation pathways observed for the homogeneous pincer complex propound the advantages of using porous solid supports to immobilize organometallic species.

中文翻译:

含P O C O P-Pd夹杂物的Zr MOF的催化活性

由P O C O P-Pd夹钳复杂金属交联剂1-PdBF 4,Zr 6 O 4(OH)4(L-PdMeCN)3(BF 43,L =(2,6- (OPAR 22 C ^ 6 ħ 3中,Ar = p -C 6 H ^ 4 CO 2 - )已经经由合成后氧化生成的I - / BF 4 -与NOBF配体交换41-PDBF 4催化一系列有机转化,包括不饱和有机底物的转移氢化,末端炔烃水合和炔烃的分子内氢化。均相类似物t Bu 4 P O C O P-PdBF 4显示出对转移氢化和炔烃水合作用的不良催化活性,并在催化反应条件下分解。均相钳子配合物的溶解度限制和催化剂失活途径证明了使用多孔固体载体固定有机金属物质的优势。
更新日期:2020-06-23
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