作者:Tal Harel、Shlomo Rozen
DOI:10.1021/jo100278z
日期:2010.5.7
An efficient procedure for transferring an oxygen atom to the 1- or 2-substituted 5-alkyl or aryl tetrazole ring, resulting, for the first time, in the corresponding N-oxides, was developed using HOF center dot CH(3)CN. This novel route features mild conditions and high yields. X-ray structure analysis and (15)N NMR experiments indicate that the preferred position for the incorporation of the oxygen is on the N-3 atom.