Abstract
The two regioisomeric β-ketoesters obtained by ring expansion of a cycloalkanone with ethyl diazoacetate and a Lewis acid give the same cycloalkyne upon exposure of the corresponding isoxazolinone to sodium nitrite/aqueous acetic acid and ferrous sulfate.
| Original language | English |
|---|---|
| Pages (from-to) | 5737-5740 |
| Number of pages | 4 |
| Journal | Tetrahedron Letters |
| Volume | 36 |
| Issue number | 32 |
| Publication status | Published - 10 Aug 1995 |