Oxazolines are readily oxidized to 1,3-oxazoles using NBS/peroxide or light or, more efficiently, by the Kharasch-Sosnovsky Reaction.
Meyers A. I., Tavares Francis, Tetrahedron Lett, 35 (1994) N 16, S 2481-2484
作者:Meyers A. I., Tavares Francis
DOI:——
日期:——
Oxidation of Oxazolines and Thiazolines to Oxazoles and Thiazoles. Application of the Kharasch−Sosnovsky Reaction
作者:A. I. Meyers、Francis X. Tavares
DOI:10.1021/jo9613491
日期:1996.11.15
Kharasch-Sosnovsky reaction, the oxidation of oxazolines and thiazolines bearing a variety of 2-alkyl substituents (chiral and achiral) were smoothly oxidized to their corresponding oxazoles and thiazoles, respectively. The key feature involved in the successful implementation of this important oxidation was the use of a mixture of Cu(I) and Cu(II) salts to enhance the oxidation of the intermediate captodative