97684-11-2Relevant academic research and scientific papers
Double Michael addition of dithiols to acetylenic carbonyl compounds under the influence of molecular sieve and dimethyl sulfoxide
Kakinuma, Tomoko,Oriyama, Takeshi
experimental part, p. 290 - 292 (2010/03/26)
Double Michael addition of dithiols such as 1,3-propanedithiol and 1,2-ethanedithiol to α,β-acetylenic carbonyl compounds in the presence of molecular sieve and dimethyl sulfoxide proceeds very smoothly to afford the corresponding β-keto 1,3-dithianes and
On the synthesis of β-keto-1,3-dithianes from conjugated ynones catalyzed by magnesium oxide
Xu, Chunli,Bartley, Jonathan K.,Enache, Dan I.,Knight, David W.,Lunn, Matthew,Lok, Martin,Hutchings, Graham J.
, p. 2454 - 2456 (2008/09/20)
MgO was used for the first time as a heterogeneous basic catalyst to synthesize β-keto-1,3-dithianes, potentially useful synthetic intermediates, from conjugated ynones and ynoates.
Oxidative Generation of Thioalkyl Cations from 2-Tributylstannyl-1,3-dithianes and 1-(Tributylstannyl)alkyl Sulfides and Their Reactions with Olefinic Nucleophiles
Narasaka, Koichi,Arai, Noriyoshi,Okauchi, Tatsuo
, p. 2995 - 3003 (2007/10/02)
2-Tributylstannyl-1,3-dithianes and 1-(tributylstannyl)alkyl sulfides are oxidized with ammonium hexanitratocerate(IV) or ferrocenium hexafluorophosphate to generate their cation radicals, which dissociate into the carbocations and tributylstannyl radical
Generation of Cation Radicals from 2-Tributylstannyl-1,3-dithianes and their Reaction with Olefins
Narasaka, Koichi,Okauchi, Tatsuo,Arai, Noriyoshi
, p. 1229 - 1232 (2007/10/02)
Oxidation of 2-tributylstannyl-1,3-dithianes with metallic oxidants generates reactive species such as 1,3-dithian-2-yl radical and/or cation by eliminating the stannyl group.Those intermediates react with olefins to give the intermolecular addition produ
1,3-Dithienium- and 1,3-Dithiolenium Salts, II. Synthesis of Monocyclothioacetalized 1,3-Diketones from Silyl Enol Ethers
Stahl, Ingfried
, p. 1798 - 1808 (2007/10/02)
The 1,3-dithienium and 1,3-dithiolenium salts 3, available from the dithiols 1 or the cyclic thioacetals 4 (n=2, 3) by reaction with the acyl chlorides 2, trityl tetrafluoroborate (5), and sulfuryl chloride (7), react in good yields with the silyl enol ethers 10 to give the new monocyclothioacetalized 1,3-diketones 11.The synthetic potential of 11 as partially protected 1,3-diketones is demonstrated exemplarily by dethioacetalization to the 1,3-dicarbonyl compounds 13.
