Recommanded Product: 100-51-6. Recently I am researching about DEFECTIVE UIO-66; STATE, Saw an article supported by the Ministere de l’Enseignement Superieur, de la Recherche et de l’Innovation. Published in ROYAL SOC CHEMISTRY in CAMBRIDGE ,Authors: Gairola, P; Millot, Y; Krafft, JM; Averseng, F; Launay, F; Massiani, P; Jolivalt, C; Reboul, J. The CAS is 100-51-6. Through research, I have a further understanding and discovery of Benzyl Alcohol
A series of zirconium-terephthalate UiO-66 metal-organic frameworks (MOFs) containing partially uncoordinated zirconium sites (Zr-UC) were synthesized, finely characterized by complementary physico-chemical techniques, and employed to catalyze the oxidative dehydrogenation of alcohols in the presence oftert-butyl hydroperoxide (TBHP). These sites were two-fold: bulk Zr(UC)sites created by reducing the content of terephthalate linkers within the framework and intrinsic Zr(UC)sites existing on the external surface of undefective UiO-66 crystals. The activity of both sites was evidenced by the linear dependency taking place between the activity and either the missing linkers or external surface area. Combining in one UiO-66 crystal a high density of Zr(UC)sites within the bulk and a high external surface area enabled the performances of the catalysts in alcohol dehydrogenation to be maximized, making the oxidation of benzyl alcohol over 90% at mild temperature (T= 40 degrees C) after 2 h of reaction possible. More challenging secondary alcohols were also oxidized. The formation of Lewis acid sites at the inorganic nodes was monitored by FTIR spectroscopy of adsorbed CO. The presence of bulk and/or external Zr(UC)sites was further disclosed by the observation on hydrated samples of solid-state(1)H NMR signals, corresponding to the protons of terminal mu(1)-OH moieties capping the Zr(UC)sites. Interestingly, two distinct NMR signals corresponding to the terminal mu(1)-OH moieties of bulk and surface Zr(UC)sites were identified. Finally, a mechanism of alcohol dehydrogenation using TBHP was proposed relying on the concomitant coordination of benzyl alcohol and TBHP onto the two adjacent Zr(UC)sites at the zirconium cornerstones.
Recommanded Product: 100-51-6. Welcome to talk about 100-51-6, If you have any questions, you can contact Gairola, P; Millot, Y; Krafft, JM; Averseng, F; Launay, F; Massiani, P; Jolivalt, C; Reboul, J or send Email.
Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles