Aldehydes react with silyl ethers or the corresponding alcohols and allylsilanes in the presence of catalytic amounts of 2,4-dinitrobenzenesulfonic acid (DNBA) to provide a wide range of homoallylic ethers in moderate to high yields.

Ethers P 0150 Broensted Acid Catalyzed Three-Component Hosomi-Sakurai Reactions. -(KAMPEN, D.; LADEPECHE, A.; CLASSEN, G.; LIST*, B.; Adv. Synth. Catal. 350 (2008) 7-8, 962-966; MPI Kohlenforsch., D-45470 Muelheim/Ruhr, Germany; Eng.) -Nuesgen 36-051