Cyclopropane Intermediates from Insertion Reactions of
Platinum–Carbenes: A Route to Heterospiranes
作者:Chang Oh、Kiseong Kim、Soyung Kim
DOI:10.1055/s-0036-1591489
日期:2018.2
a pendent alkene group were successfully cyclized through a Huisgen-type [3+2] cycloaddition to give a tetracyclic Pt–carbene complex that underwent insertion into the C–H bond in the β-position to give fused cyclopropanes that are otherwise inaccessible. On heating, the cyclopropanes smoothly rearranged to form the corresponding heterospiranes with excellent levels of stereoselectivity and high yields