Tripodliganden mit drei verschiedenen Donorgruppen : Synthese und Koordination von CH3C(CH2PR2)(CH2PR'2)(CH2PR″2)

Tripod ligands CH 3 C(CH 2 PR 2 )(CH 2 PR' 2 )(CH 2 PR'' 2 ), 6(a-e), with three different donor groups are obtained from CH 3 C(CH 2 Cl)(CH 2 Br)(CH 2 OSO 2 CF 3 ), 3, by successive replacement of the three different leaving groups. 3 itself is easily accessible from CH 3 C(CH 2 OH), in a few simple steps. The general applicability of this strategy is demonstrated by the preparation of five different ligands 6(a-e)