Synthesis of new alkoxysilyl-substituted carboranes
作者:B. A. Izmaylov、V. A. Vasnev、V. I. Bregadze、E. N. Rodlovskaya、G. D. Markova
DOI:10.1007/s11172-017-1826-4
日期:2017.5
synthesized compounds were established by IR and NMR spectroscopy and confirmed by elemental analysis. The synthesized compounds are interesting starting materials for produc-tion of heat-resistant silicon carborane polymers and metal-carborane-silicon polymers.
ORGANIC-INORGANIC HYBRID CHIRAL SORBENT AND PROCESS FOR THE PREPARATION THEREOF
申请人:Abdi Syed Hasan Razi
公开号:US20100286425A1
公开(公告)日:2010-11-11
The present invention provides an organic-inorganic hybrid chiral sorbent for chiral resolution of various racemic compounds viz. racemic mandelic acid, 2-phenyl propionic acid, diethyl tartrate, 2,2′-dihydroxy-1,1′-binaphthalene (BINOL) and cyano chromene oxide with excellent chiral separation (enantiomeric excess, 99%) in case of mandelic acid under medium pressure column chromatography. These optically pure enantiomers find applications as intermediates in pharmaceutical industries.
Soluble fulleropyrrolidines bearing a trialkoxysilyl functionality (methoxy, ethoxy, butoxy, and isopropoxy) have been prepared and characterized. The hydrolysisrate constant for each fulleropyrrolidine was measured with 1H NMR spectroscopy by following the disappearance of selected resonances of the fullerene substrate under the conditions (HCl/H2O/THF) used for the preparation of fullerene-doped