A p-tert-butylcalix[4]arene functionalised at its lower rim with ether-amide pendant arms acts as an inorganic–organic receptor: structural and photophysical properties of its lanthanide complexes
A p-tert-butylcalix[4]arene functionalised at its lower rim with ether-amide pendant arms acts as an inorganic–organic receptor: structural and photophysical properties of its lanthanide complexes
Gamma radiolysis of hydrophilic diglycolamide ligands in concentrated aqueous nitrate solution
作者:Gregory P. Horne、Andreas Wilden、Stephen P. Mezyk、Liam Twight、Michelle Hupert、Andrea Stärk、Willem Verboom、Bruce J. Mincher、Giuseppe Modolo
DOI:10.1039/c9dt03918j
日期:——
and (iii) radiolysis is driven by hydroxyl and nitrate radical oxidation chemistry moderated by secondary degradation product scavenging reactions. Overall, the radiolysis of hydrophilic DGAs in concentrated, aqueous nitrate solutions is significantly slower and less structurally sensitive than under pure water conditions, similar to their lipophilic analogs. Acid hydrolysis, not radiolysis, is expected
Esteramide prodrugs of anti-inflammatory corticosteroids
申请人:INTERx Research Corporation
公开号:US04221787A1
公开(公告)日:1980-09-09
Transient, C-21 and/or C-17 esteramide prodrugs of the anti-inflammatory corticosteroids, prepared by esterification of hydroxy steroids, are disclosed.
本发明揭示了抗炎皮质类固醇的瞬时、C-21和/或C-17酯酰胺前药,通过羟基类固醇的酯化制备。
Lanthanide and Actinide Ion Complexes Containing Organic Ligands Investigated by Surface-Enhanced Infrared Absorption Spectroscopy
(Am3+) ions were loaded onto the gold surface to form ion complexes. The IR spectra of the ion complexes were obtained using Fourier transform infrared spectroscopy in the attenuated total reflection mode. In this study, we developed a new sample preparation method for SEIRA spectroscopy that enabled us to obtain the IR spectra of the complexes with a small amount of ion solution (5 μL). This is a significant
The synthesis of organotriethoxysilanes by click chemistry was studied using the recyclable, multidentate catalyst [Cu(C(18)tren)]Br. For the evaluation, alkyne precursors containing some of the more common organic functions were reacted with a triethoxy silyl group containing azide. The procedure allowed the isolation of the desired products in high yields and high purity. Especially remarkable is the facility of the catalyst removal by simple filtration and evaporation. The catalyst is concluded to be ideal for the synthesis of moisture sensitive organotriethoxysilanes. (C) 2020 Elsevier Ltd. All rights reserved.