Electroreductive intermolecular coupling of phthalimides with aldehydes: application to the synthesis of alkylideneisoindolin-1-ones
作者:Naoki Kise、Shinsaku Isemoto、Toshihiko Sakurai
DOI:10.1016/j.tet.2012.07.094
日期:2012.10
and N-unsubstituted phthalimides with aldehydes in the presence of chlorotrimethylsilane and triethylamine gave intermolecularly coupled products, 3-hydroxy-3-(1-hydroxyalkyl)isoindolin-1-ones. The coupling products were reduced with Et3SiH/BF3·Et2O to 3-(1-hydroxyalkyl)isoindolin-1-ones, which were dehydrated to alkylideneisoindolin-1-ones. From N-unsubstituted phthalimides, Z-isomers of alkylideneisoindolin-1-ones