Total Diastereofacial Selective Iodofunctionalization of Terpene Derivatives Based on Ipy<sub>2</sub>BF<sub>4</sub>
作者:José Barluenga、Mónica Alvarez-Pérez、Félix Rodríguez、Fracisco J. Fañanás、José A. Cuesta、Santiago García-Granda
DOI:10.1021/jo034517f
日期:2003.8.1
Acetonides 1, easily obtained from simple terpenes, react with bispyridine iodonium (I) tetrafluoroborate (Ipy(2)BF(4)) and tetrafluoroboric acid in the presence of nucleophiles to give the corresponding adducts 2 with complete regio and diastereofacial control. Acetonides 1 containing a properly located phenyl or benzyloxy group easily undergo iodocyclization to furnish compounds 3 and 4.