A polymer-supported rhodium catalyst that functions in polar protic solvents

[GRAPHICS] Highly cross-linked macroporous polymers are excellent supports for heterog enizing rhodium alkene hydrogenation and hydroboration catalysts. The perma nent pore structure of the support enables high conversions and excellent y ields with minimal workup (filtering). These heterogenized catalysts can be reused, and due to the permanent pore structure, they function in a broad range of solvents including polar protic. Control experiments reveal that c atalysis occurs exclusively within the polymer matrix, and not due to leach ed catalyst.