Synthesis of 2-Amino-6-phenyl-4<i>H</i>-pyran-4-ones
作者:Joel Morris、Donn G. Wishka
DOI:10.1055/s-1994-25402
日期:——
The treatment of a series of phenylacetylenic ß-keto amides with methanesulfonic acid produces a high yielding intramolecular cyclization to the corresponding 2-amino-6-phenyl-4H-pyran-4-ones.