that the optimized geometry can well reproduce the crystal structure. The antioxidant and antiproliferative activity were evaluated by superoxide (NBT) and MTT assay. The adamantyl nitroxide derivatives exhibited stronger scavenging ability towards O 2 · − radicals when compared to Vitamin C, and demonstrated a remarked anticanceractivity against all the tested cell lines, especially Bel-7404 cells
Highly Efficient, Selective and Ultrasound-Assisted Monohydrolysis of Polyhedral Diesters in Co-solvent
作者:H.L. Zhang、X.H. Zhu、H. Yan、X.Q. Song
DOI:10.14233/ajchem.2013.14630
日期:——
In this work, a new procedure for the selective monohydrolysis of polyhedral diesters is reported. The optimal conditions with regard to the catalytic activity, quantity of catalyst, ultrasound irradiation power, solvents and both the reaction and separation temperatures were examined. A series of polyhedral monoesters were obtained in high yield using 1-2 mol % of p-toluene sulphonic acid in a co-solvent under ultrasonic irradiation. This work not only leads to a practical synthetic method for polyhedral monoesters, but also provides a new approach to acid-catalyzed selective monohydrolysis.