28861-21-4Relevant academic research and scientific papers
Iodine promoted α-hydroxylation of ketones
Siddaraju, Yogesh,Prabhu, Kandikere Ramaiah
supporting information, p. 6749 - 6753 (2015/06/25)
A novel method for α-hydroxylation of ketones using substoichiometric amount of iodine under metal-free conditions is described. This method has been successfully employed in synthesizing a variety of heterocyclic compounds, which are useful precursors. α-Hydroxylation of diketones and triketones are illustrated. This strategy provides a novel, efficient, mild and inexpensive method for α-hydroxylation of aryl ketones using a sub-stoichiometric amount of molecular iodine.
Palladium-catalyzed direct conversion of carboxylic acids into ketones with organoboronic acids promoted by anhydride activators
Yamamoto,Kakino,Narahashi,Shimizu
, p. 1333 - 1345 (2007/10/03)
A new type of catalytic process to convert carboxylic acids and organoboron compounds into unsymmetrical ketones in one-pot under mild and neutral conditions was presented. The method allowed the use of an α, β-unsatuarted carboxylic acids such as trans-c
Synthesis of carbocycles by enone-selective reduction using organoiodotin hydride
Suwa, Toshihiro,Nishino, Keita,Miyatake, Masato,Shibata, Ikuya,Baba, Akio
, p. 3403 - 3406 (2007/10/03)
By using di-n-butyliodotin hydride (n-Bu2SnIH), carbocycles were prepared from substrates bearing both enone and formyl moieties, where the enone-selective reduction was followed by a diastereoselective intramolecular aldol reaction. (C) 2000 Elsevier Science Ltd.
Effects of methylene chains on photoreactions of diphenylalkanediones and phenylalkenones
Nakamura, Mitsunobu,Miki, Masamichi,Majima, Tetsuro
, p. 415 - 420 (2007/10/03)
Upon conventional UV-irradiation of I,ω-diphenylalkane-1,ω-dione (PhC(O)-(CH2)n-C(O)Ph, n= 5, 6, 7, 8, and 10) in acetonitrile using a medium-pressure Hg lamp, an intramolecular γ-hydrogen abstraction of the triplet ketone (type II p
Lewis Acid-Promoted Disproportionation Reaction of Aromatic Vinyl Ethers and Acetals and Its Application to the Synthesis of Paracotoin
Gong, Young Dae,Tanaka, Hiroko,Iwasawa, Nobuharu,Narasaka, Koichi
, p. 2181 - 2185 (2007/10/03)
Aromatic vinyl ethers and acetals underwent a novel addition-fragmentation reaction affording olefins and esters in the presence of a Lewis acid. This reaction was applied to intramolecular cyclization reaction, giving five or six membered ring compounds in good yields. Paracotoin, an intermediate in the biosynthesis of shikimic acid, was synthesized using this cyclization reaction as the key step.
Conformational study of the higher [n.n]paracyclophanes: Evaluation as potential hosts for molecular halogens and benzenes
Mascal, Mark,Kerdelhue, Jean-Luc,Batsanov, Andrei S.,Begley, Michael J.
, p. 1141 - 1151 (2007/10/03)
A fundamental study of the conformations of [7.7]-, [8.8]-, [9.9]-, [11.11]- and octamethyl[8.8]-paracyclophanes in the solid state shows that the [odd.odd] members of the series possess parallel, symmetrically disposed benzene rings. A new genre of inclu
