17874-17-8Relevant academic research and scientific papers
Preparation of Functionalized Acylsilanes by Diol Cleavage of Cyclic 1,2-Dihydroxysilanes
Zimdars, Patrick,B?hlig, Kristin,Metz, Peter
, p. 6163 - 6167 (2019/08/20)
We report a study on diol cleavage of cyclic 1,2-dihydroxysilanes for the preparation of functionalized acylsilanes. Sodium periodate turned out to be an efficient reagent for this transformation, resulting in good to excellent yields. The method is chara
Six- and five-membered 3-alkoxy-2-lithiocycloalkenes: New stable non-anionic β-functionalised organolithium compounds
Yus, Miguel,Ramón, Diego J,Gómez, Inmaculada
, p. 5163 - 5172 (2007/10/03)
Naphthalene-catalysed reductive lithiation of various functionalised chlorocycloalkenes 18 leads to the corresponding non-anionic β-alkoxyfunctionalised organolithium reagents 14. Their reaction with different electrophiles, such as water, aldehydes, keto
Preparation of amino substituted cyclic vinylsilanes by Wurtz-Fittig procedure
HariPrasad,Nagendrappa, Gopalpur
, p. 1016 - 1019 (2007/10/03)
The Wurtz-Fittig method of silylation of simple vinyl halides to vinylsilanes is extended to aminosubstituted vinyl halides. 2-Halo-3-morpholinylcycloalkenes can be silylated to the corresponding 2-trimethylsilyl-3-morpholinyl-1-cycloalkenes using excess of chlorotrimethylsilane and sodium in dioxane solvent without significant cleavage of C-N-morpholinyl bond under these metal reduction conditions. Similar success was not achieved with piperidinyl derivatives.
One-pot synthesis of α-trimethylsilyl enones from vinylsilanes
Adam,Richter
, p. 176 - 180 (2007/10/02)
Photooxygenation of vinylsilanes in the presence of acetic anhydride and pyridine afforded α-trimethylsilyl enones 1 in moderate to good yields. Since the required starting materials are readily available, the present approach constitutes a useful alterna
Generation and Solution-phase Behaviour of Some 2-Halogeno-1,3-ring-fused Cyclopropenes
Banwell, Martin G.,Corbett, Madelaine,Gulbis, Jacqueline,Mackay, Maureen F.,Reum, Monica E.
, p. 945 - 964 (2007/10/02)
The title cyclopropenes 2b are readily formed by reaction of ring-fused β-silylated-gem-dihalogenocyclopropanes of the general type 1b with tetrabutylammonium fluoride in tetrahydrofuran solution.Those halogenocyclopropenes 2b which are fused to a seven-
1,3-Bridged Cyclopropenes
Billups,Lee, Gon-Ann,Arney Jr., Benny E.,Whitmire, Kenton H.
, p. 7980 - 7984 (2007/10/02)
Solid fluoride deposited on glass helices has been used to effect the gas-phase elimination of 1-(trimethylsilyl)-7-chlorobicyclo[4.1.0]heptane and 1-(trimethylsilyl)-8-chlorobicyclo[5.1.0]octane to yield bicyclo[4.1.0]hept-1(7)-ene and bicyclo[5.1.0]oct-1(8)-ene, respectively. Bicyclo[4.1.0]hept-1(7)-ene dimerizes below ca. -90 °C via an ene reaction to yield a new cyclopropene, which then couples to form tetramers. The structures of two tricyclohexane tetramers were determined by X-ray crystallography. The ene dimer was found to react with molecular oxygen to yield two carbonyl compounds identified as 2-(1-bicyclo[4.1.0]heptyl)cyclohexene-1-carboxaldehyde and 3-(1-bicyclo[4.1.0]heptyl)cyclohept-2-en-1-one. These compounds are thought to result from the reaction of molecular oxygen with carbenes that would arise from cyclopropene - vinylcarbene rearrangements. Bicyclo[5.1.0]oct-1(8)-ene is considerably more stable than its lower homologue but also dimerizes via an ene reaction 7-Chlorobicyclo[4.1.0]hept-1(7)-ene rearranges below -90 °C to yield 2-chloro-1,3-cycloheptadiene.
Palladium-mediated silylation of organic halides with disilane/F- reagent
Hatanaka, Yasou,Hiyama, Tamajiro
, p. 4715 - 4718 (2007/10/02)
Under catalytic influence of tetrakis(triphenylphosphine)palladium, tris(diethylamino)sulfonium trimethyldiflourosilicate promoted the reaction of vynil halides with hexamethyldisilane to give corresponding vinyl silanes in good yields chemoselectivity and stereospecifically.
