1303612-73-8Relevant articles and documents
Asymmetric synthesis of methylenetetrahydrofurans by palladium-catalyzed [3 + 2] cycloaddition of trimethylenemethane with aldehydes - A novel ligand design
Trost, Barry M.,Bringley, Dustin A.,Silverman, Steven M.
, p. 7664 - 7667 (2011)
The palladium-catalyzed [3 + 2] cycloaddition of trimethylenemethane (TMM) with aldehydes is a direct and efficient route to methylenetetrahydrofurans. Herein we describe the first asymmetric synthesis of methylenetetrahydrofurans utilizing a palladium-TMM complex in the presence of a novel phosphoramidite ligand possessing a stereogenic phosphorus. The method allows for the formation of chiral disubstituted tetrahydrofurans in good yields and enantioselectivities.