First highly regio- and diastereoselective synthesis of Δ2-pyrazolines by [3+2] cycloaddition of chiral non-racemic Fischer carbene complexes with nitrilimines
作者:José Barluenga、Félix Fernández-Marí、Enrique Aguilar、Argimiro L Viado、Bernardo Olano
DOI:10.1016/s0040-4039(98)00886-7
日期:1998.7
[3+2] Cycloaddition of Fischer carbene complexes with nitrilimines is described for the first time. The “one-pot” conversion of Fischer carbenes into enantiomerically pure Δ2-pyrazolines with high regio- and diastereoselectivity is presented as an expeditious route to these compounds.