Abstract
A new type of C2-symmetric chiral diene ligand bearing a simple bicyclic [3.3.0] backbone was discovered. (3aS,6aS)-3,6-diphenyl-1,3a,4,6a-tetrahydropentalene was applied successfully in the Rh-catalyzed asymmetric arylation of N-tosylarylimines with arylboronic acids. With the new chiral diene ligand, a broad range of highly enantiomerically enriched diarylmethylamines (98−99% ee) as well as 3-aryl substituted phthalimidines (99% ee) could be easily prepared.
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