Abstract New isoxazoline derivatives have been synthesized in high yields by cycloaddition of acetonitrile oxide to α,β-unsaturated β-methyl-δ-lactones. These unsaturated lactones have been used to obtain β-methyl branched saturated lactones and lactams, as well as lactones with an inversed configuration of hydroxy group, following the divergent approach.
摘要 通过将氧化
乙腈环加成到 α,β-不饱和 β-甲基-δ-内酯上,以高收率合成了新的
异恶唑啉衍
生物。这些不饱和内酯已被用于获得β-甲基支链饱和内酯和内酰胺,以及具有反相羟基构型的内酯,遵循发散的方法。