Tandem addition–cyclization mediated by sulfanyl radicals: a versatile strategy for iridoids synthesis
作者:Elena M. Sánchez、Jesús F. Arteaga、Victor Domingo、José F. Quílez del Moral、M. Mar Herrador、Alejandro F. Barrero
DOI:10.1016/j.tet.2008.03.058
日期:2008.5
Sulfanyl radicals trigger a tandemaddition–cyclization protocol in linalool or citronelene derivatives for the efficient construction of the iridane monoterpene skeleton. Best results in yields and diastereoselectivity were obtained when phenylethylsulfanyl was used as radical initiator. We have proved the utility of this protocol with the enantiospecific synthesis of natural iridane dehydroiridomyrmecin