Hypoiodite-catalysed oxidative cyclisation of Michael adducts of chalcones with 1,3-dicarbonyl compounds: A facile and versatile approach to substituted furans and cyclopropanes
Through hypoiodite catalysis, oxidative cyclisation of Michael adducts of chalcones with 1,3-dicarbonyl compounds for divergent synthesis of either furans or cyclopropanes is developed. The selective synthesis of major products is achieved depending on the use of different reaction conditions or substrates.
Samarium(III) tris(2,6-di-tert-butyl-4-methylphenoxide): Preparation, properties, and catalytic activity in the Michael type reaction
Samarium(III) tris(2,6-di-tert-butyl-4-methylphenoxide) (1), which is a highly coordinatively unsaturated complex, was prepared by the reaction of samarium(III) iodide with sodium 2,6-di-tert-butyl-4-methylphenoxide, and the crystal structure of its aceto
EASY MICHAEL ADDITION BY SOLID-LIQUID PHASE TRANSFER CATALYSIS ABNORMAL REACTION OF N-ACETYLAMINOMALONATE.
Solid-liquid phase transfer catalysis (PTC) without added solvent efficiently promotes Michael addition of substituted malonates on hindered acceptors.A rearrangement of adducts formed by addition of diethyl N-acetylaminomalonate is described.
Bram, G.,Sansoulet, J.,Galons, H.,Miocque, M.
p. 367 - 380
(2007/10/02)
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