Stereoselective Preparation of Oxygenated Heterocycles Using Stereocontrolled Tandem Double-Allylation of Carbonyl Compounds with a Boron-Silicon Reagent
摘要:
A one-pot three-component reaction between carbonyl double-allylation reagent 1 and aldehydes was optimized to provide a high diastereoselectivity in the formation of all-cis trisubstituted tetrahydrofurans. A similar procedure applied to dicarbonyl substrates provided an oxabicyclic compound embedding an 8-membered medium ring.