Total synthesis and stereochemical assignment of cryptolatifolione†
Abstract
An enantioselective total synthesis of cryptolatifolione and its C-8 epimer is presented in a protecting-group-free fashion. The synthesis relied on the use of a catalytic double Krische allylation, catalytic olefin metathesis and a C–H oxidation. Comparison of spectroscopic data of the synthetic isomers and natural product made possible the unambiguous elucidation of the absolute configuration of cryptolatifolione.