Polymer-supported formamides as reusable organocatalysts for allylation of aldehydes with allyltrichlorosilane

New types of polymer-supported formamides have been synthesized from chloromethylated resins and formamides; it was found that the polymers worked well as organocatalysts in the allylation of aldehydes with allyltrichlorosilane to afford homoallylic alcohols in high yields; the polymers were easily recovered and reused several times without loss of activity.