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A Novel Method for the Demetalation of Tricarbonyliron–Diene Complexes by a Photolytically Induced Ligand Exchange Reaction with Acetonitrile
Author(s) -
Knölker HansJoachim,
Goesmann Helmut,
Klauss Rüdiger
Publication year - 1999
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/(sici)1521-3773(19990301)38:5<702::aid-anie702>3.0.co;2-w
Subject(s) - acetonitrile , chemistry , diene , ligand (biochemistry) , photochemistry , medicinal chemistry , organic chemistry , receptor , biochemistry , natural rubber
The photochemical exchange of all three carbonyl ligands with acetonitrile converts tricarbonyliron–diene complexes into the very labile triacetonitrile‐iron–diene complexes. These easily demetalate in high yields to the corresponding free ligands on injection of air at −30°C [Eq. (1)]. The novel demetalation procedure is applied to the tricarbonyliron complexes of cyclopentadienones, cyclohexa‐1,3‐dienes, and buta‐1,3‐dienes.