Highly Active Polymer-Supported (Salen)Al Catalysts for the Enantioselective Addition of Cyanide to α,β-Unsaturated Imides
作者:Nandita Madhavan、Marcus Weck
DOI:10.1002/adsc.200700491
日期:2008.2.22
In this contribution, we describe polymer-supported (R,R)-(salen)AlCl complexes that were immobilized on poly(norbornene)s and display excellent activities and enantioselectivies as catalysts for the 1,4-conjugate addition of cyanide to α,β-unsaturatedimides. These supported catalysts could be recycled up to 5 times without compromising catalyst activities or selectivities. Furthermore, the catalyst