55437-96-2Relevant academic research and scientific papers
Asymmetric catalysis. Production of chiral diols by enantioselective catalytic intramolecular hydrosilation of olefins
Bergens, Steven H.,Noheda, Pedro,Whelan, John,Bosnich
, p. 2121 - 2128 (2007/10/02)
Rhodium(I) chiral diphosphine complexes efficiently and rapidly catalyze the intramolecular hydrosilation of silyl ethers derived from allylic alcohols. The efficiency and rates of intramolecular hydrosilations were determined for a variety of silyl and olefin substituents. The catalysts were found to tolerate a wide variety of silyl substituents, although terminal alkyl olefin substituents were found to retard catalysis. Terminal aryl olefin substituents were found to be hydrosilated efficiently and at reasonable rates. One of the chiral catalysts is highly enantioselective for terminal aryl olefin substituents. Almost quantitative ee's are obtained. Moreover, the ee's are only slightly sensitive to aryl and olefin substituents, suggesting that this enantioselective catalysis can provide a wide range of chiral species. Oxidative cleavage of the hydrosilation products gives chiral diols.
An Electron Spin Resonance Study of Silacyclopentyl and Related Radicals
Jackson, Richard A.,Zarkadis, Antonios K.
, p. 1139 - 1142 (2007/10/02)
Silacyclopentyl radicals, prepared by γ-irradiation of silacyclopentane in an adamantane matrix, exist at low temperatures in two equivalent twist conformations, which interconvert at higher temperatures.The temperature variation of the ESR spectrum gives
Synthesis of Certain Cyclic Silanes
House, Herbert O.,Hrabie, Joseph A.,Narasimhan, S. Lakshmi
, p. 124 - 127 (2007/10/02)
The chlorotrialkylsilanes 21-24 have been synthesized as precursors to potential steric blocking groups for alkanes and cycloalkanes.Reaction of these chlorosilanes with one of the organometallic reagents methyllithium, methylmagnesium chloride, n-octylmagnesium bromide, or p-chlorobenzylmagnesium chloride formed the silanes 25-34.
