Enantio- and Diastereoselective Synthesis of Substituted Tetrahydro-1<i>H</i>-isochromanes through a Dynamic Kinetic Resolution Proceeding under Dienamine Catalysis
作者:Ane Orue、Efraím Reyes、Jose L. Vicario、Luisa Carrillo、Uxue Uria
DOI:10.1021/ol301602h
日期:2012.7.20
nes react with enolizable α,β-unsaturatedaldehydes in the presence of a chiral secondary amine catalyst furnishing a wide range of differently substituted tetrahydro-1H-isochromanes with excellent results. The reaction relies on the activation of the enal by the catalyst through the formation of a dienamine intermediate, which undergoes a Diels–Alder/elimination cascade reaction. Moreover, the overall