Recent advances of achiral and chiral diene ligands in transition-metal catalyses

Abstract

A series of achiral and chiral diene and the related ligands in transition-metal complexes is evaluated by percent buried volume (%Vbur) based on their molecular structures by X-ray analysis. Steric bulk of cyclic diene ligands in [Ru(acac)2L] and [RhClL]2 are sorted in the order of %Vbur. Recent developments on transition-metal catalyses using these ligands such as (i) conjugate arylations, alkenylation, and alkynylation, (ii) imine-arylations and alkenylations, (iii) kinetic resolutions, (iv) allylation, (v) cyclizations, (vi) defluorinations, (vii) C[sbnd]H bond activations, and (viii) cross-dimerizations are reviewed.