Convergent One-Pot Oxidative [<i>n</i>+ 1] Approaches to Spiroacetal Synthesis
作者:GuangRong Peh、Paul E. Floreancig
DOI:10.1021/acs.orglett.5b01736
日期:2015.8.7
Two one-pot oxidative annulative approaches to spiroacetal synthesis are described. One approach uses a Lewis acid mediated Ferrier reaction in the fragment-coupling stage followed by DDQ-promoted oxidative carbon-hydrogen bond cleavage and cyclization. An alternative approach employs a Heck reaction for fragment coupling followed by DDQ-mediated enone formation and cyclization. These strategies provide convergent routes to common subunits in natural products, medicinal agents, and chemical libraries under mild reaction conditions.
Sequential Catalytic Asymmetric Allylic Transfer Reaction: Enantioselective and Diastereoselective Construction of Tetrahydropyran Units
作者:Chan-Mo Yu、Jae-Young Lee、Byungran So、Junghyun Hong