Abstract
Asymmetric cyclopropanation of styrene with diazoacetic esters is performed firstly using chiral amino acidato complexes of Pd(II) containing a C,N-cyclometallated group as an ancillary ligand as catalyst precursors. In general these catalytic systems provide good conversion to the corresponding cyclopropyl derivatives with a moderate trans selectivity, although the stereoselectivities obtained were low. With the use of chiral catalysts and chiral diazoacetic esters the diastereoselectivities were slightly improved.
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