Facile diastereoselective access to functionalized oxazol-5-ones and dihydroimidazoles was accomplished through base-promoted intramolecular amidolysis and methoxide-assisted tandem intramolecular amidolysis/ring opening/intramolecular cyclization, respectively, of C-3-functionalized azetidin-2-ones.

中文翻译：

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β-内酰胺-合成中间体金属/无酸非对映选择性获得高度官能化的恶唑-5-酮和二氢咪唑

分别通过碱促进的分子内酰胺分解和甲醇辅助的串联分子内酰胺分解/开环/分子内环化，分别对 C-3-功能化的氮杂环丁烷-2-酮进行了轻松的非对映选择性获取功能化的恶唑-5-酮和二氢咪唑。