title: The synthesis of biologically relevant conjugates of Re(CO)3using pyridine-2-carboxyaldehyde.
abstract: The new pyridine-2-carboxaldehyde adduct, Re(CO)3(NC6H5C(O)H)Cl1,and previously reported complex Re(CO)3(NC6H5C(O)H)Br2react with aniline derivatives sulfanilamide or 4-aminofluorescein in methanol giving Schiff base conjugates Re(CO)3(pyca-R)X (pyca = pyridinecarbaldehyde imine, X = Cl, Br),3-6. Pre-isolation of compounds1and2provides a convenient method for preparing conjugate complexes in addition to the known methods of ligand synthesis and one-pot reactions. All new compounds were completely characterized, and compound1and the sulfanilamide derivatives3and4were structurally elucidated by X-ray crystallography.
authors: Department of Chemistry, University of Akron, Akron, OH 44325-3601, USA.
authors: Roshinee
authors: R
authors: Costa
authors: Kullapa
authors: K
authors: Chanawanno
authors: James T
authors: JT
authors: Engle
authors: Bertha
authors: B
authors: Baroody
authors: Richard S
authors: RS
authors: Herrick
authors: Christopher J
authors: CJ
authors: Ziegler
keywords: Carbonyl; Crystal Structures; Fluorescein; Metal conjugate; Rhenium; Sulfonamide
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