Synthesis of naturally occuring quinones. Part 20. Tandem Michael/Diels-Alder addition as a new strategy toward tetracyclic systems: synthesis of 11-deoxyanthracyclinones
Unsual ε/γ-regiospecificity of (E/Z)-pentadienyltin in the Lewis acid-promoted reaction with an aldehyde
作者:Yutaka Nishigaichi、Manabu Fujimoto、Akio Takuwa
DOI:10.1039/p19920002581
日期:——
In the Lewis acid-promoted reaction between pentadienyltin (PDT) and an aldehyde, (E)- and (Z)-PDTs exhibit opposite regioreactivities: (E)-PDT reacts at the terminal epsilon-position and (Z)-PDT at the internal gamma-position.