Natural product chemistry. Part 181. Investigations on the synthesis of dihydropyrano- and dihydrofurano-coumarins by application of catalytic enantioselective cis-dihydroxylation
Abstract
As part of a study on the applicability of catalytic enantioselective cis-dihydroxylation for the synthesis of dihydropyrano- and dihydrofurano-anellated coumarins new routes to (–)-cis-khellactone 1b, (–)-trans-khellactone 1c and rutartein 4 have been developed.