We recently demonstrated that Cp, Ind and Flu anions cause epoxides ring opening reaction to form mono-functionalized O-bearing ligands. Now we describe the synthesis of polydentate derivatives, obtained by running the reaction in the presence of oxirane excess. In fact, under this condition the nucleophylic attack of cyclopentadienyl gives in one step mono [C5H4R; R = CH2CH(Me)OH or CH(CH2)3CHOH] (1) o bifunctionalized ligands [C5H3R2] (2), if thermally solicited.By analogy, the reactions with Indenyl anion affords 3 and the disubstituted derivative 4.The coordination abilities of the class of polydentate -ligands, alcohol or ether substituted, have been tested with transition metals to give half-sandwich (A or B)

SYNTESIS and COORDINAtion of multidentate O-functioanlized Cp ligands

NATANTI, PAOLO;BORDONI, SILVIA;BUSETTO, LUIGI;CERINI, STEFANO
2005

Abstract

We recently demonstrated that Cp, Ind and Flu anions cause epoxides ring opening reaction to form mono-functionalized O-bearing ligands. Now we describe the synthesis of polydentate derivatives, obtained by running the reaction in the presence of oxirane excess. In fact, under this condition the nucleophylic attack of cyclopentadienyl gives in one step mono [C5H4R; R = CH2CH(Me)OH or CH(CH2)3CHOH] (1) o bifunctionalized ligands [C5H3R2] (2), if thermally solicited.By analogy, the reactions with Indenyl anion affords 3 and the disubstituted derivative 4.The coordination abilities of the class of polydentate -ligands, alcohol or ether substituted, have been tested with transition metals to give half-sandwich (A or B)
2005
XXXIII Congresso Nazionale divisione inorganica SCI
PO 70
PO 70
P. Natanti; S. Bordoni; L. Busetto; S. Cerini
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/16748
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