Fine tuning of catalytic and sorption properties of metal–organic frameworks via in situ ligand exchange
作者:Peng Wang、Kai Chen、Qing Liu、Huai-Wei Wang、Mohammad Azam、Saud I. Al-Resayes、Yi Lu、Wei-Yin Sun
DOI:10.1039/c7dt02231j
日期:——
Metal-organicframeworks (MOFs) are gathering considerable attention not only because of their diverse structures but also due to their interesting properties and potential applications. However, fabrication of MOFs with desired structures and properties remains a great challenge. In this study, a strategy based on ligand exchange via single-crystal-to-single-crystal (SCSC) transformation has been
Tandem halogenation/Michael-initiated ring-closing reaction of α,β-unsaturated nitriles and activated methylene compounds: one-pot diastereoselective synthesis of functionalized cyclopropanes
An efficient one-pot synthetic route to highly substituted cyclopropanes has been developed from readily available α,β-unsaturatednitriles and doubly activated methylene compounds under very mild conditions in a highly diastereoselective manner, which involves halogenation, Michael addition and intramolecular ring-closing reaction sequences.
Specific lift-up behaviour of acetate-intercalated layered yttrium hydroxide interlayer in water: application for heterogeneous Brønsted base catalysts toward Knoevenagel reactions
The basal (00l) plane of acetate-intercalated layered yttrium hydroxide (CH3COO−/Y-LRH), synthesised by an anion exchange using Cl−/Y-LRH as a parent material, increased in water, and the lifted-up layered structure was generated immediately.