... Synthesis 2004(11): 1859-1863 DOI: 10.1055/s ... of α,β-unsaturated compounds in a domino approach was to obtain large amount of 1-[1-methyl-2(S)-pyrrolidinyl]-1-butene-3-one for extending our method [4] of synthesis of 3,5-disubstitued isoxazole to synthesize 3-methyl-5-[ ...