Thallium trinitrate mediated oxidation of 3-alkenols: ring contraction vs cyclization.
The reaction of a series of six-membered ring 3-alkenols with thallium trinitrate (TTN) in three different experimental conditions was studied. Either cyclization products or ring contraction products were obtained, depending on the structure of the substrate as well as the nature of the solvent. The reaction of a seven-membered ring 3-alkenol with TTN led to the ring contraction product exclusively.
Ferraz
Helena M C
HM
Departamento de Química, Universidade Federal de São Carlos, CEP 13565-905, São Carlos SP, Brazil. hmferraz@iq.usp.br
Longo Jr
Luiz S
LS
Zukerman-Schpector
Julio
J