38982-28-4Relevant academic research and scientific papers
Asymmetric synthesis of 2-aryl-5-oxotetrahydrofuran-2-carboxylic acids
Jogi, Artur,Paju, Anne,Pehk, Tonis,Kailas, Tiiu,Mueuerisepp, Aleksander-Mati,Kanger, Tonis,Lopp, Margus
, p. 3031 - 3036 (2008/02/08)
3-Aryl-2-hydroxycyclopent-2-en-1-ones, when subjected to asymmetric oxidation, result in enantiomerically enriched 2-aryl-5-oxotetrahydrofuran-2- carboxylic acids. Electron-donating substituents in the para position of the phenyl ring increase the yield and decrease the enantioselectivity of the process. Georg Thieme Verlag Stuttgart.
Isomerisation of primary propargyl alcohols to vinyl ketones mediated by Hg(OAc)2
Yadav,Prahlad,Muralidhar
, p. 3415 - 3418 (2007/10/03)
Mercuric acetate mediated isomerisation of primary propargyl alcohols to vinyl ketones analagous to Rupe rearrangement is described.
Conjugate Addition of Acyloxy Groups to Alkynylphenyliodonium Tetrafluoroborates under Both Basic and Acidic Conditions. Synthesis of α-Acyloxy Ketones
Ochiai, Masahito,Kunishima, Munetaka,Fuji, Kaoru,Nagao, Yoshimitsu
, p. 4038 - 4041 (2007/10/02)
Reaction of alkynylphenyliodonium tetrafluoroborates 1 with sodium salts of carboxylic acids in the presence of water affords α-acyloxy ketones.The reaction also proceeds under acidic conditions.The fact that the reaction of (4-hydroxy-1-butynyl)phenyliod
Silyl Nitronates in Organic Synthesis. Routes to Heterocycles and Cyclopentanoids. Synthesis of Allethrolone and Calythrone. Acylation and Cyanohydroxylation of Double Bonds. An Exploratory Study
Andersen, Soeren H.,Das, Nalin B.,Joergensen, Ruth D.,Kjeldsen, Gunhild,Knudsen, Jes S.,et al.
, p. 1 - 14 (2007/10/02)
Silyl nitronates are versatile reagents for the preparation of heterocycles by dipolar addition to double bonds.The intermediate isoxazolidines can be transformed to 2-isoxazolines, isoxazoles, furans, dihydrofuranones, pyrazoles, pyridazines and pyridazones.Reduction of 2-isoxazolines with Ti3+ leads to hydroxylated 1,4-diketones, which subsequently can be cyclized to cyclopentenones.Routes to calythrone, rethrolones, prostanoids and a number of naturally occurring dihydrofuranones are devised, as well as synthetic procedures for acylation, preparation of endiones, hydroxyacylation, cyanation and hydroxycyanation of double bonds.
ADDITION VON ALDEHYDEN AN AKTIVIERTE DOPPELBINDUNGEN, XXVII. MITTEILUNG : EIN EINFACHER WEG ZU 2-HYROXY-CYCLOPENTENONEN
Stetter, H.,Schlenker, W.
, p. 3479 - 3482 (2007/10/02)
A new, easy synthetic route to 2-hydroxy-3-alkyl-cyclopentenones starting from the thiazolium salt catalyzed addition of aldehydes to 1-acetoxy-3-buten-2-one is described.
