Reductive cyclodimerisation of Arylmethylidenemalononitriles Promoted by Sm/Incl 3 ·4H 2 O System in Aqueous Media: Highly Stereoselective Synthesis of Cyclopentamine Derivatives †
In the presence of active indium produced in situ by the Sm/InCl3·4H2O system, arylmethylidenemalononitriles undergo reductive cyclodimerisation to afford cyclopentamine derivatives with high stereoselectivity under mild conditions in aqueous media.
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