Electropolymerized Cr–salen complexes for the heterogeneous asymmetric hetero Diels-Alder reaction

New electropolymerized chiral salen–chromium complexes have been successfully used as heterogeneous catalysts for the asymmetric hetero Diels-Alder reaction. These insoluble catalysts were reused up to six times affording the expected products with unchanged enantioselectivity along the recycling procedure. Promising attempts to use these catalysts in a multi-substrate procedure are described.

Graphical abstractNew electropolymerized chiral salen–chromium complexes have been successfully used as heterogeneous catalysts for the asymmetric hetero Diels-Alder reaction. These insoluble catalysts were reused up to six times affording the expected products with unchanged enantioselectivity along the recycling procedure. Promising attempts to use these catalysts in a multi-substrate procedure are described. Figure optionsDownload full-size imageDownload as PowerPoint slide