The novel tandem radical addition-cyclization of oxime ethers and hydrazones intramolecularly connected with the α, β-unsaturated carbonyl group is described. The radical reaction of oxime ethers 1, 2, and 4 connected with acryloyl and methacryloyl moieties proceeded smoothly to give the heterocycles via a tandem CC bond-forming process. The tandem reaction of hydrazone 5 took place in the presence of Zn (OTf) 2 as a ...
