An efficient and diastereoselective [2+2] cycloaddition: convenient and enantioselective route to trans-2′,3′-dihydroxymethylcyclobutane nucleoside analogs
摘要:
An efficient route to (2S-trans)-2,3-bis[(benzoyloxy)methyl]cyclobutanone (3a), a key intermediate in the synthesis of cyclobutane nucleoside analogs, via a novel asymmetric [2 + 2] cycloaddition, is described.