Sungmin Cho, Yong-Dae Park, Jeum‐Jong Kim
Sep 6, 2003
Citations
0
Influential Citations
43
Citations
Journal
The Journal of organic chemistry
Abstract
Pyrido[2,3-b][1,4]oxazin-2-ones are conveniently prepared in excellent yields by a one-pot annulation of N-substituted-2-chloroacetamides with 2-halo-3-hydroxypyridines with use of cesium carbonate in refluxing acetonitrile. The key transformation features a Smiles rearrangement of the initial O-alkylation product and subsequent cyclization.