The application of vinylogous iminium salt derivatives to the regiocontrolled preparation of heterocyclic appended pyrazoles
作者:John T Gupton、Stuart C Clough、Robert B Miller、Bradley K Norwood、Charles R Hickenboth、Itta Bluhn Chertudi、Scott R Cutro、Scott A Petrich、Fred A Hicks、Douglas R Wilkinson、James A Sikorski
DOI:10.1016/s0040-4020(02)00517-3
日期:2002.7
A variety of vinylogous iminium salt derivatives have been examined as useful precursors for the regiocontrolled synthesis of heterocyclic appended pyrazoles. The reaction conditions for such processes have been optimized and the regiochemical preferences have been determined. Such reaction sequences represent methodologies which may have useful applications for the preparation of biologically interesting substances. (C) 2002 Elsevier Science Ltd. All rights reserved.
Salvatori, Gazzetta Chimica Italiana, 1891, vol. 21 II, p. 273,275