The Prins Reaction Using Ketones: Rationalization and Application toward the Synthesis of the Portentol Skeleton
作者:Maiwenn Jacolot、Mickael Jean、Nicolas Levoin、Pierre van de Weghe
DOI:10.1021/ol202829u
日期:2012.1.6
We report a TMSI-promoted Prins cyclization reaction with ketones as carbonyl partners to prepare polysubstituted chiral spirotetrahydropyrans. In the presence of racemic 2-methylcyclohexanone a dynamic kinetic resolution occurred affording one stereoisomer. The observed enantiospecificity has been rationalized by DFT calculation.