D. Enders et D. Nguyen, Synthesis of enantioenriched substituted tetrahydrofurans and tetrahydropyrans via iron-mediated chirality transfer and ring closure, SYNTHESIS-S, (14), 2000, pp. 2092-2098
The synthesis of optically active, functionalized tetrahydrofurans and tetr
ahydropyrans via Fe(CO)(4)-mediated cycloetherification has been accomplish
ed. The ring closure reaction proceeds with chirality transfer and under re
tention of the configuration at the allylic carbon center.