Towards Organo-Click Chemistry: Development of Organocatalytic Multicomponent Reactions Through Combinations of Aldol, Wittig, Knoevenagel, Michael, Diels-Alder and Huisgen Cycloaddition Reactions
作者:Dhevalapally B. Ramachary、Carlos F. Barbas
DOI:10.1002/chem.200400597
日期:2004.11.5
copper(I) for catalyzing multicomponent reactions (MCRs). We aimed to prepare both diene and dienophiles simultaneously, under very mild and environmentally friendly conditions, thus giving the constituents for a stereocontrolled Diels-Alder reaction, which in turn yields compounds 4 to 8. A diversity-oriented synthesis of polysubstituted spirotriones 4 to 6 were assembled from simple substrates like
A Novel Proline-Catalyzed Three-Component Reaction of Ketones, Aldehydes, and Meldrum's Acid
作者:Benjamin List、Chris Castello
DOI:10.1055/s-2001-18095
日期:——
We describe a novel proline-catalyzed three-component domino reaction between ketones, aldehydes and Meldrum's acid. Two new carbon-carbon σ-bonds from three different components are formed in this efficient transformation.