73510-71-1Relevant academic research and scientific papers
Pyrylium Salt Sensitized Photochemical Deprotections of Dithioacetals and Ketals
Kamata, Masaki,Murakami, Yukiko,Tamagawa, Yasuko,Kato, Mitsuaki,Hasegawa, Eietsu
, p. 12821 - 12828 (2007/10/02)
Photoreactions of various dithioacetals and ketals using tris(p-chlorophenyl)pyrylium perchlorate as a sensitizer were studied.Irradiation (λ>360 nm) of dichloromethane solutions containing dithioacetals or ketals and pyrylium salt afforded the corresponding carbonyl compounds in good to excellent yields in the presence of molecular oxygen.
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
Enantioselective Synthesis of 2-(2-Methyl-1,3-dithiolan-2-yl)ethanoles. - New Agents for the Preparation of Optically Active β-Hydroxy Ketones
Stahl, Ingfried,Wrabletz, Frank,Gosselck, Juergen
, p. 371 - 376 (2007/10/02)
The 2,2-disubstituted 1,3-dithio acetales 3, available by cyclothioacetalization of the 1,3-diketones 1 with the 1,3-dithioles 2, are reduced in good optical yields with the chiral auxiliary 4 to the 2-(2-methyl-1,3-dithiolan- and -1,3-dithian-2-yl)ethano
2,2-Disubstituted 1,3-Dithianes from β-Dicarbonyl Compounds
Stahl, Ingfried,Manske, Rainer,Gosselck, Juergen
, p. 800 - 805 (2007/10/02)
1,3-Dicarbonyl compounds 2 can be condensed with 1,3-propanedithiol (1) to yield 2,2-disubstituted 1,3-dithianes 3 which are remarkably stable in contrast to analogous open-chain thioacetals 6.Compounds with alkoxycarbonyl functions are easily hydrolysed
