Preparation of Dipyridylmethane Ligands with Pseudo-C2 Symmetry. Grafting on Polystyrenes via Transformation to Phenolic Derivatives

V Levacher, C Moberg

Index: Levacher, Vincent; Moberg, Christina Journal of Organic Chemistry, 1995 , vol. 60, # 6 p. 1755 - 1762

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Citation Number: 14

Abstract

Efficient grafting of dipyridylmethane ligands on highly cross-linked as well as gel-type chloromethylated polystyrenes has been achieved using phenolic derivatives of the ligands. In this way, chiral polymer-supported ligands with pseudo-C2 symmetry were obtained. The synthesis of the ligands and their grafting under mild conditions are described, as well as the preparation of monomeric models. During reduction of 6, 6'-(2, 2-dimethyl-l-oxopropyl) ...