An in-based 3D metal-organic framework as heterogeneous Lewis acid catalyst for multi-component Strecker reactions
作者:Juan Chai、Ping Zhang、Jianing Xu、Hui Qi、Jing Sun、Shubo Jing、Xiaodong Chen、Yong Fan、Li Wang
DOI:10.1016/j.ica.2018.04.037
日期:2018.7
A novel three-dimensional metal-organic framework (MOF) [In3(NIPH)(3) (HNIPH)(OH)(2)].4H(2)O}(n) (1) (H2NIPH = 5-nitroisophthalic acid) with one-dimensional channels was synthesized and structurally characterized. Importantly, it demonstrates excellent catalytic activity for the Strecker reactions of two or three components under mild conditions. Moreover, the catalytic recycling of 1 as a representative example was explored. It can be easily separated and reused for no less than five runs with more than 80% conversion yield in catalytic ability.
In(III) and Sc(III) based coordination polymers derived from rigid benzimidazole-5,6-dicarboxylic acid: Synthesis, crystal structure and catalytic property
作者:Juan Chai、Pengcheng Wang、Jia Jia、Bing Ma、Jing Sun、Yufang Tao、Ping Zhang、Li Wang、Yong Fan
DOI:10.1016/j.poly.2017.10.028
日期:2018.2
Two new coordination polymers (CPs), [InCl(H(2)bidc)(2)(H2O)](n) (1) and [Sc(Hbidc)(OH)(H2O)](n) (2) (H(3)bidc = benzimidazole-5,6-dicarboxylic acid) were synthesized through a solvothermal approach. 1 exhibits a 1D infinite chain, which further constructs a 3D supramolecular framework via hydrogen bonds. 2 features a 3D supramolecular framework consisting of left- and right-handed chiral layers, which contain the left- and right-handed chiral spiral chains. The adjacent layers stack through pi-pi stacking interactions between benzene and imidazole rings. 1 exhibits excellent catalytic reactivity for the Strecker reaction and can be recycled four consecutive reactions with more than 95% conversion yields. (C) 2017 Elsevier Ltd. All rights reserved.