75717-41-8Relevant academic research and scientific papers
Synthesis of vinyl sulfides under base-free conditions using selenium ionic liquid
Thurow, Samuel,Ostosi, Naiana T.,Mendes, Samuel R.,Jacob, Raquel G.,Lenard?o, Eder J.
experimental part, p. 2651 - 2653 (2012/06/30)
A very simple procedure is described for the efficient synthesis of vinyl sulfides by hydrothiolation of terminal alkynes using 1-n-butyl-3- methylimidazolium methylselenite, [bmim][SeO2(OCH3)]. The reaction proceeds cleanly under mi
Alkyne hydrothiolation catalyzed by a dichlorobis(aminophosphine) complex of palladium: Selective formation of cis-configured vinyl thioethers
Gerber, Roman,Frech, Christian M.
scheme or table, p. 8901 - 8905 (2012/09/25)
Cis all round: Dichlorobis[1-(dicyclohexylphosphanyl)piperidine]palladium, [(P{(NC5H10)(C6H11) 2})2Pd(Cl)2], is a highly efficient alkyne hydrothiolation catalyst and the first generally applicable system that selectively generates cis-configured anti-Markovnikov adducts in excellent yields within only a few minutes at 120 °C in the presence of only 0.05 mol % of the catalyst (see scheme).
Water-promoted regioselective hydrothiolation of alkynes
Bhadra, Sukalyan,Ranu, Brindaban C.
experimental part, p. 1605 - 1609 (2010/04/03)
Water promotes hydrothiolation of unactivated alkynes efficiently without any catalyst or additive. The reaction at room temperature furnishes vinyl sulfides with high regioselectivity via anti-Markovnikov addition. The terminal al- kynes provide dithiola
Reductive addition of the benzenethiyl radical to alkynes by amine-mediated single electron transfer reaction to diphenyl disulfide
Taniguchi, Tsuyoshi,Fujii, Tatsuya,Ldota, Atsushi,Lshibashi, Hiroyuki
supporting information; experimental part, p. 3298 - 3301 (2009/12/01)
Hydrothiolation of alkynes proceeds with diphenyl disulfide and tripropylamine. Amine-mediated single electron transfer to diphenyl disulfide can be proposed for the reaction mechanism. Applications of the method to radical cyclizations of eneyne compound
Copper-catalyzed synthesis of vinyl sulfides
Bates, Craig G.,Saejueng, Pranorm,Doherty, Michael Q.,Venkataraman
, p. 5005 - 5008 (2007/10/03)
(Chemical Equation Presented) We report a method for the synthesis of vinyl sulfides using the soluble copper(I) catalyst [Cu(phen)(PPh3) 2]NO3. The desired vinyl sulfides are obtained in good to excellent yields, with retention of stereochemistry. This protocol tolerates a wide variety of functional groups or substrates, is palladium-free, and does not require the use of expensive or air-sensitive additives.
Stereoselective preparation of functionalized acyclic alkenylmagnesium reagents using i-PrMgCl-LiCl
Ren, Hongjun,Krasovskiy, Arkady,Knochel, Paul
, p. 4215 - 4217 (2007/10/03)
(Chemical Equation Presented) Acyclic functionalized alkenyl iodides are converted with high stereoselectivity to the corresponding functionalized alkenylmagnesium derivatives by the reaction with i-PrMgCl-LiCl between -40 and -20°C. Functional groups such as a nitrile, chloride, iodide, and ester are readily tolerated. The conversion of an alkenyl iodide bearing a keto group to the corresponding silylated cyanohydrin allows preparation of the corresponding Grignard reagent affording, after acylation and deprotection, unsaturated 1,4-diketones.
Electroinitiated Oxygenation of Alkenyl Sulfides and Alkynes in the Presence of Thiophenol
Yoshida, Jun-ichi,Nakatani, Shogo,Isoe, Sachihiko
, p. 4855 - 4865 (2007/10/02)
Electrolysis of alkenyl sulfides in the presence of thiophenol with bubbling of molecular oxygen gave the corresponding α-(phenylthio) carbonyl compounds with the consumption of a catalytic amount of electricity.An electroinitiated radical chain mechanism has been proposed.The reaction also took place without electrochemical initiation, but much (5-50 times) longer reaction time was required for the completion of the reaction.The potential utility of the present reaction in organic synthesis is demonstrated by the net 1,2-transposition of a phenylthio group and a carbonyl group.The electroinitiated oxygenation of ketene dithioacetals also proceeded smoothly to give the corresponding α-(phenylthio) thiol esters.It was also found that the electroinitiated oxygenation of alkynes in the presence of thiophenol gave α-(phenylthio) carbonyl compounds.A mechanism involving the initial formation of alkenyl sulfides has been proposed.
Facile Reduction of Dithiocarbonates Derived from Secondary Alcohols with n-Bu3SnH-Et3B and Synthesis of 2-Furanthiones and 2-Furanones by Intramolecular Addition of Alkoxythiocarbonyl Free Radicals to Acetylenic Linkages
Nozaki, Kyoko,Oshima, Koichiro,Utimoto, Kiitiro
, p. 2578 - 2583 (2007/10/02)
The reduction of dithiocarbonates or thiocarbonates by n-Bu3SnH-Et3B easily gives the corresponding hydrocarbons.The intermediate alkoxythiocarbonyl radical equivalents are trapped by properly located carbon-carbon multiple bonds.The dithiocarbonates derived from either homopropargylic or homoallylic alcohols produce tetrahydrofuranones upon treatment with n-Bu3SnH-Et3B.Application of this new method to the conversion of carbonyl compounds into olefins is also described.
PALLADIUM-CATALYZED REACTIONS OF TRIALKYLSTANNYL PHENYL SULFIDES WITH ALKENYL BROMIDES. A NEW DIASTEREOSELECTIVE SYNTHESIS OF (E)-1-ALKENYL PHENYL SULFIDES
Carpita, Adriano,Rossi, Renzo,Scamuzzi, Barbara
, p. 2699 - 2702 (2007/10/02)
The reaction of easily available stereoisomeric mixtures of 1-alkenyl bromides with molar excesses of trialkylstannyl phenyl sulfides takes place readily in the presence of Pd(PPh3)4 to afford diastereoselectively (E)-1-alkenyl phenyl sulfides in excellent yields.
CLEAVAGE OF SILICON-VINYL CARBON BOND BY nBu4NF
Oda, Hiroji,Sato, Mitsuyoshi,Morizawa, Yoshitomi,Oshima, Koichiro,Nozaki, Hitosi
, p. 2877 - 2880 (2007/10/02)
Dimethylphenylsilyl- and diphenylmethylsilyl-vinyl carbon bonds are cleaved with nBu4NF.Desilylation of 1-phenylthio-1-trimethylsilyl-1-alkenes in the presence of aldehyde moiety gives carbanion adducts.
