Enantiocontrolled Synthesis of Highly Functionalized Tropanes via [5 + 2] Cycloaddition to η<sup>3</sup>-Pyridinylmolybdenum π-Complexes
作者:Helena C. Malinakova、Lanny S. Liebeskind
DOI:10.1021/ol000288x
日期:2000.11.1
nonracemic eta(3)-pyridinyl scaffold participates in [5 + 2] cycloaddition with electron-deficient alkenes, an allene, and an alkyne to give eta(3)-allylmolybdenum bicyclic adducts. The adducts can be demetalated, providing a convergent route to highly functionalized tropanes. High enantiocontrol can be achieved throughout the cycloaddition and demetalation sequence.