Diastereoselective formation of a dicopper(i) helicate with a chiral tetradentate pyridylthiazole ligand.

Chui-Shan Tsang, Ho-Lun Yeung, Wing-Tak Wong, Hoi-Lun Kwong

Index: Chem. Commun. (Camb.) (15) , 1999-2001, (2009)

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Abstract

Reaction of a pinene-based pyridylthioamide with 1,4-dibromo-2,3-butanedione in refluxing methanol yielded a new chiral pyridylthiazole ligand L which forms a dinuclear double-stranded helicate with Cu(i) ions; this helicate has opposite helical chirality when compared with its quaterpyridine analogue.