Design and Synthesis of
Chiral Heteroleptic Rhodium(II)
Carboxylate Catalysts: Experimental Investigation of Halogen Bond
Rigidification Effects in
Asymmetric Cyclopropanation
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Abstract
A general method for the synthesis of chiral heteroleptic
rhodium(II)
tetracarboxylate catalysts is reported. The chlorinated TCPT unit
was found to be an efficient polarity-control group, allowing the
isolation of each complex from a mixture of six possible products.
This approach contributes to enlarging the scope of accessible chiral
Rh(II) catalysts and allowed further study of the halogen bond rigidification
effect observed in chlorinated complexes
