A highly diastereoselective approach to tetrahydrofurans via [3+2] cycloadditions of silylmethyl-substituted cyclopropanes with aldehydes and ketones

An efficient and highly diastereoselective preparation of highly substituted tetrahydrofurans from the cyclocondensation of vicinal t-butyldiphenylsilylmethyl-substituted cyclopropyl diesters with aldehydes and ketones has been developed.