Beilstein J. Org. Chem.2022,18, 70–76, doi:10.3762/bjoc.18.6
-2-yl)alkanamides and 1-(oxazolin-2-yl)alkylphosphonates.
Keywords: aziridine; diazooxoester; diazo compound; ketene; oxazoline; ring expansion; Introduction
Oxazoline derivatives are an important class of nitrogen and oxygen-containing five-membered unsaturated heterocycles [1] and widely exist in