Author/Authors :
Ma، نويسنده , , Yuanhui and Zhang، نويسنده , , Yong Jian and Jin، نويسنده , , Shangbin and Li، نويسنده , , Qiqi and Li، نويسنده , , Chenguang and Lee، نويسنده , , Junseong and Zhang، نويسنده , , Wanbin، نويسنده ,
Abstract :
A new class of C2-symmetric 3,3′-dialkoxy-2,2′-bipyrrolidines have been designed and developed for asymmetric organocatalytic Diels–Alder reactions of α,β-unsaturated aldehydes. The bipyrrolidines combined with HClO4 were found to be effective organocatalysts for enantioselective Diels–Alder reactions. The catalysis mode has been demonstrated by NMR and X-ray crystallographic studies for diiminium intermediate.
Keywords :
C2-symmetry , Bipyrrolidines , organocatalyst , Diels–Alder reaction
