Cyclization of α-Oxo-oximes to 2-Substituted Benzoxazoles
作者:Alan R. Katritzky、Zuoquan Wang、C. Dennis Hall、Novruz G. Akhmedov、Aleksandr A. Shestopalov、Peter J. Steel
DOI:10.1021/jo026771y
日期:2003.11.1
Reactions of oximes 9, 17, and 19 with electrophiles 15a-f and 24 in the presence of anhydrous potassium carbonate or triethylamine give 2-substituted condensed ring oxazoles 10, 16a-c, 18a-d, 20a-c, and 25 in a new general route to these compounds.