Merey, GokceKubilay, H. NurAnac, Olcay2021-11-012021-11-0120210366-70221348-0715https://doi.org/10.1246/cl.200863https://hdl.handle.net/11491/7348Diazocarbonyl compounds are versatile precursors of carbenes leading to various structures by using several metal catalysts, especially copper and rhodium salts. In this study, eight different diazocarbonyls having N-O moiety were used. The N-O tethered structures were prefened because they may allow some useful transformations of the final products into valuable compounds via N-O cleavage. In the presence of a double bond on the -OR function of the starting diazo compound, CuCl/AgSbF6 catalyst yielded only cyclopropyl fused oxazinane/oxazepane derivatives over cyclopropanation while Rh-2(OAc)(4) catalyst was giving mainly isooxazolidinones via C-H insertion.eninfo:eu-repo/semantics/closedAccessCarbenoidDiazoN-O moietyArticle50466867110.1246/cl.200863Q4WOS:0006355550000212-s2.0-85104996335Q3