نتایج جستجو برای: organosilicon compounds

تعداد نتایج: 226849  

Journal: :Journal of the Mass Spectrometry Society of Japan 1998

Journal: :Advanced Synthesis & Catalysis 2022

Organosilicon reagents are highly versatile and privileged scaffolds in modern synthetic chemistry, largely due to the range of transformations groups amenable to. The β-Silicon effect is one fundamental phenomena underpinning inherent reactivity organosilicon reagents, allowing unsaturated organosilanes undergo a electrophilic substitutions with variety nucleophiles. application organic review...

Journal: :Metal-Based Drugs 1998
Ghassoub Rima Jacques Satgé Rodolphe Dagiral Claude Lion Marc Fatome Vincent Roman Jean-Denis Laval

Silathiazolidine and metalladithioacetals (M = Si, Ge) have been prepared by the interaction of dialkyldichloro- or bis(diethylamino)dialkylsilanes and -germanes with 3-[N-(2- thioethyl)]amino-propanamide (WR-2529) and [1-thioethyl-2-(1-naphtylmethyl)]-2- imidazoline. The study of these compounds in the field of chemical radioprotection has shown a notable decrease in the toxicity and a rather ...

2008
Kohei TAMAO

Some synthetically useful transformations of organosilicon compounds have been developed since the mid 1970s, based on the new concept that the silicon-carbon bonds are activated toward electrophilic cleavage via the formation of penta- and hexa-coordinate species. This review mainly consists of the following aspects: (1) a general concept for the activation of the silicon-carbon bond via penta...

2004
Renji Okazaki

Disilenes Tbt(Mes)Si=SiTbt(Mes)(Mes:mesityl) bearing an efficient steric protection group, 2,4,6-tris[bis(trimethylsilyl)methyl]phenyl(Tbt), were synthesized and found to be extremely stable toward oxygen and water. In spite of the stability, they underwent thermal dissociation into silylenes under very mild conditions (ca. 50’ C). Silylenes thus formed reacted with alkenes, alkynes, benzene, n...

2016
Krystyna Mojsiewicz-Pieńkowska Marzena Jamrógiewicz Katarzyna Szymkowska Dominika Krenczkowska

Siloxanes are commonly known as silicones. They belong to the organosilicon compounds and are exclusively obtained by synthesis. Their chemical structure determines a range of physicochemical properties which were recognized as unique. Due to the susceptibility to chemical modifications, ability to create short, long or complex polymer particles, siloxanes found an application in many areas of ...

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