نتایج جستجو برای: organosilicon compounds

تعداد نتایج: 226849  

Journal: :Chemical & pharmaceutical bulletin 2002
Scott Eric Denmark Ramzi Farah Sweis

This review highlights the rapid evolution of the newly-developed class of palladium-catalyzed cross-coupling reactions of organosilicon compounds. A myriad of heteroatom-containing silicon moieties (silyl hydrides, siletanes, silanols, silyl ethers, orthosiliconates, di- and polysiloxanes and pyridylsilanes) undergo mild and stereospecific cross-coupling. The diversity of methods for introduct...

Journal: :Accounts of chemical research 2001
T L Morkin W J Leigh

Laser flash photolysis of various organosilicon compounds such as aryl-, vinyl-, and alkynyldisilanes, silacyclobutanes and silacyclobutenes, and alpha-silylketenes and -diazomethanes leads to the formation of reactive silenes which can be detected directly in solution, allowing detailed studies of the kinetics and mechanisms of their reactions with nucleophiles. Over 30 transient silenes have ...

Journal: :Journal of Synthetic Organic Chemistry, Japan 1970

2012
B. N. Ghose

C a r b o n f u n c t i o n a l s i l a n e s b e a r i n g c o u m a r i n t y p e f u n c t i o n a l g r o u p s a r e o f i n t e r e s t d u e t o t h e i r p o t e n t i a l i m p o r t a n c e as p r e c u r s o r s i n c o s m e t i c i n d u s t r i e s . W e r e p o r t t h e s y n t h e s i s o f s o m e 4 o r g a n o s i l i c o n d e r i v a t i v e s o f 7 h y d r o x y c o u m a ...

Journal: :Angewandte Chemie 2015
Nootaree Niljianskul Shaolin Zhu Stephen L Buchwald

The synthesis of α-aminosilanes by a highly enantio- and regioselective copper-catalyzed hydroamination of vinylsilanes is reported. The system employs Cu-DTBM-SEGPHOS as the catalyst, diethoxymethylsilane as the stoichiometric reductant, and O-benzoylhydroxylamines as the electrophilic nitrogen source. This hydroamination reaction is compatible with differentially substituted vinylsilanes, thu...

ژورنال: مواد پرانرژی 2014

Abstract: Oxidizer constitute most part of propellant and ammonium perchlorate is most used oxidizer in solid propellant among other oxidizer. Coating is one method to prevent agglomeration of ammonium perchlorate or to create other desirable properties on ammonium perchlorate. Usually type of coating agent and method of coating are selected on base of purpose of coating. Target of coating per...

Journal: :Science 2016
S B Jennifer Kan Russell D Lewis Kai Chen Frances H Arnold

Enzymes that catalyze carbon-silicon bond formation are unknown in nature, despite the natural abundance of both elements. Such enzymes would expand the catalytic repertoire of biology, enabling living systems to access chemical space previously only open to synthetic chemistry. We have discovered that heme proteins catalyze the formation of organosilicon compounds under physiological condition...

Journal: :Bulletin of the Chemical Society of Japan 1970

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