85719-72-8Relevant articles and documents
KF/clinoptilolite NPs: An efficient and heterogeneous catalyst for chemoselective silylation of alcohols and phenols
Oladee, Razieh,Zareyee, Daryoush,Khalilzadeh, Mohammad A.
, p. 731 - 737 (2021/03/31)
Potassium fluoride incorporated on clinoptilolite nanoparticles (KF/CP NPs) by ion exchanging is found to be an effective and inexpensive heterogeneous nanocatalyst for chemoselective silylation of alcohols and phenols with 1,1,1,3,3,3-hexamethyldisilazane (HMDS) at room temperature. Nano-powder of clinoptilolite (CP) was prepared using a planetary ball mill mechanically method and characterized by dynamic light scattering (DLS), X-ray powder diffraction (XRD) and scanning electron microscope (SEM) analyses. Almost all of products were obtained in high yields as well as short reaction times and the catalyst was also reused eight times without loss of its catalytic activity.
Pyridylmethylsilanes as dicarboxyacid receptors: Experimental and theoretical study
?e?ska, Bogus?awa,Schroeder, Grzegorz,Pankiewicz, Rados?aw,Mikisz, Bogus?awa
, p. 116 - 123 (2013/01/14)
A series of literature known (1-3) [1-4] and new Si-tripodal receptors for anion sensing, based on 1-3 pyridylmethyl functionalized side arms as recognition sites, was designed, successfully synthesized and characterized by 1H and 13C NMR spectra (4-9). These ligands showed high selectivity and strong binding affinity toward investigated dicarboxyacid anions. The complexes formation was confirmed by 19F NMR spectra. All supramolecular complexes were structurally authenticated using parametric method 5 (PM5) with the MO-G for SCIGRESS program. The results brought information of the type and nature of intermolecular interactions present in the complexes and extended structures.
Polyvinylpolypyrrolidoniume tribromide as new and metal-free catalyst for the formylation and trimethylsilylation of hydroxyl group
Ghorbani-Choghamarani, Arash,Goudarziafshar, Hamid,Zamani, Parisa
scheme or table, p. 1207 - 1210 (2012/01/05)
Trimethylsilylation of alcohols was achieved using 1,1,1,3,3,3- hexamethyldisilazane (HMDS) as silylating agent, in the presence of polyvinylpolypyrrolidoniume tribromide in acetonitrile at room temperature. Also a variety of alcohols were converted into alkyl formates by ethyl formate and a catalytic amount of polyvinylpolypyrrolidoniume tribromide under solvent free conditions at room temperature.