42996-88-3Relevant articles and documents
An unusual condensation of alkyl 3-oxo-4-(triphenylarsoranylidene)butanoate with aldehydes; synthesis of symmetrical substituted 1,3,5-cycloheptatrienes
Moorhoff, Cornelis M.
, p. 4157 - 4160 (1997)
The unique preparation of 2-substituted 4,7-dihydroxycyclohepta-3,5,7-triene-1,3- dicarboxylates 5 from aldehydes 4 and two equivalents alkyl 3-oxo-4-(triphenylarsoranylidene)butanoate 3 is described.
Ru-catalyzed highly chemo- and enantioselective hydrogenation of γ-halo-γ,δ-unsaturated-β-keto esters under neutral conditions
Ma, Xin,Li, Wanfang,Li, Xiaoming,Tao, Xiaoming,Fan, Weizheng,Xie, Xiaomin,Ayad, Tahar,Ratovelomanana-Vidal, Virginie,Zhang, Zhaoguo
supporting information; experimental part, p. 5352 - 5354 (2012/06/30)
Finely-tuned ruthenium-catalyzed highly chemoselective and enantioselective hydrogenation of γ-halo-γ,δ-unsaturated-β-keto esters at the carbonyl group was achieved under neutral reaction conditions (ee up to 97%). Both olefin and alkenyl halogen moieties, which are labile under hydrogenation conditions, remained untouched during the reaction.
Candida Rugosa lipase-catalyzed kinetic resolution of β-hydroxy- β-arylpropionates and δ-hydroxy-δ-aryl-β-oxo-pentanoates
Xu, Chengfu,Yuan, Chengye
, p. 2169 - 2186 (2007/10/03)
A simple and convenient method was reported for the preparation of optically active β-hydroxy-β-arylpropionates, δ-hydroxy-δ- aryl-β-oxo-pentanoates and their butyryl derivatives via CRL-catalyzed hydrolysis. The optically active products are potential precursors of some chiral pharmaceuticals and natural products.
Domino primary alcohol oxidation-wittig reaction: Total synthesis of ABT-418 and (E)-4-oxonon-2-enoic acid
Shet, Jyoti,Desai, Vidya,Tilve, Santosh
, p. 1859 - 1863 (2007/10/03)
Domino oxidation of primary alcohols to α,β-unsaturated compounds using the combination of PCC-NaOAc and stabilized Wittig reagent and its application towards total synthesis of ABT-418 and 4-oxonon-2-enoic acid is described.
Cumulated Ylides, 22. - Reactions of (Triphenylphosphoranylidene)ethenone with Halogen Compounds and their Preparative Application
Bestmann, Hans Juergen,Geismann, Christian,Zimmermann, Reiner
, p. 1501 - 1510 (2007/10/02)
(Triphenylphosphoranylidene)ethenone (6) reacts with halogen compounds 7 to yield four-membered ylide phosphonium salts 9.Ring opening of 9 under different conditions gives rise to the formation of bis-ylides 13, ylide salts 14, or bis-phosphonium salts 1
A Practical Synthetic Method for β-Ketosters from Ketones
Tomozane, Hideo,Takeuchi, Yasuo,Yamato, Masatoshi
, p. 401 - 404 (2007/10/02)
A practical, simple, one-pot synthesis of β-ketoesters (3) from ketones (1) via bis(methylthio)ketene acetals (4) was achieved. Keywords---β-ketoester; bis(methylthio)ketene acetals; C-alkoxycarbonylation; ketone; carbon disulfide
Pharmaceutical compositions containing 5-phenyl-1,3-dioxoalkenyl compounds
-
, (2008/06/13)
This invention relates to pharmaceutical compositions containing a class of 5-phenyl-1,3-dioxoalkenyl compounds useful as inhibitors of leukotriene biosynthesis and thus useful in the treatment of conditions associated with leukotrienes. This invention al