Hydroformylation of aryloxy ethylenes by Rh/BINAPHOS complex

The enantioselective synthesis of 2-aryloxypropanoic acids precursors, an important class of chiral agrochemicals, via hydroformylation of the relative aryl vinyl ethers catalyzed by Rh(I)-(S,R)/BINAPHOS complex proceeds with enantiomeric excesses up to 80%.