Jiang Wei, Yang Jin, Liu Ying-Ying, Song Shu-Yan, Ma Jian-Fang
Key Lab for Polyoxometalate Science, Department of Chemistry, Northeast Normal University , Changchun 130024, People's Republic of China.
State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, People's Republic of China.
Inorg Chem. 2017 Mar 6;56(5):3036-3043. doi: 10.1021/acs.inorgchem.6b03174. Epub 2017 Feb 17.
We herein report the porous 4-fold interpenetrated mog (moganite) metal-organic framework (MOF) [Cd(tipp)(bpdc)]·DMA·9HO (1·Cd; Htipp = 5,10,15,20-tetrakis(4-(imidazol-1-yl)phenyl)porphyrin, Hbpdc = biphenyl-4,4'-dicarboxylic acid, DMA = N,N'-dimethylacetamide). The incorporation of Cd and carboxylate oxygen affords 1·Cd rich Lewis acid and basic sites. This MOF 1·Cd was then applied as an efficient heterogeneous catalyst for the important cyanosilylation of aldehydes and Knoevenagel condensation reactions. 1·Cd features excellent catalytic performance and recyclability for the cyanosilylation of various aldehydes with trimethylsilyl cyanide (TMSCN). Moreover, 1·Cd shows highly efficient catalysis and substrate selectivity for Knoevenagel condensation reactions of various aldehydes with malononitrile. The high catalytic activity and stability toward C-C bond formation make 1·Cd a promising heterogeneous catalyst.
我们在此报告多孔四重穿插的莫来石（moganite）金属有机框架（MOF）[Cd(tipp)(bpdc)]·DMA·9H₂O（1·Cd；Htipp = 5,10,15,20-四（4-（咪唑-1-基）苯基）卟啉，Hbpdc = 联苯-4,4'-二羧酸，DMA = N,N'-二甲基乙酰胺）。镉和羧酸根氧的引入赋予1·Cd丰富的路易斯酸和碱性位点。然后，这种MOF 1·Cd被用作醛的重要氰基硅烷化反应和克诺文纳格尔（Knoevenagel）缩合反应的高效多相催化剂。1·Cd对各种醛与三甲基硅基氰化物（TMSCN）的氰基硅烷化反应具有优异的催化性能和可回收性。此外，1·Cd对各种醛与丙二腈的克诺文纳格尔缩合反应表现出高效催化和底物选择性。对碳-碳键形成的高催化活性和稳定性使1·Cd成为一种有前景的多相催化剂。
