Reaction between <i>ortho</i>‐Hydroxy Aromatic Aldehydes and Dialkyl Acetylenedicarboxylates in the Presence of Silica Gel in Solvent‐Free Conditions
作者:Nader Noshiranzadeh、Ali Ramazani
DOI:10.1080/00397910701545486
日期:2007.9.1
Abstract A two‐component condensation reaction between an ortho‐hydroxy aromatic aldehyde and an electron‐poor acetylenic ester efficiently provides fully substituted electron‐poor aryl vinyl ethers and chromenes in a one‐pot reaction in the presence of silica‐gel in solvent‐free conditions.
A novel multicomponent quadruple/double quadruple domino reaction: highly efficient synthesis of polyheterocyclic architectures
作者:Manickam Bakthadoss、Srinivasan Jayakumar、Selvakumar Raman、Anthonisamy Devaraj、Duddu S. Sharada
DOI:10.1039/c8ob02970a
日期:——
A novel multicomponent quadruple domino reaction (MCQDR) for the assembly of structurally complex molecular architectures via the formation of three rings and three contiguous stereogenic centers has been accomplished with high regio- and diastereoselectivity. Solvents, catalysts and work-up were not required to obtain the target molecules. In addition, this new protocol is also extended for the multicomponent