Coordination of Iron (III) Cations to β??Keto Esters as Studied by Electrospray Mass Spectrometry: Implications for Iron??Catalyzed Michael Addition Reactions

C Trage, D Schröder, H Schwarz

Index: Trage, Claudia; Schroeder, Detlef; Schwarz, Helmut Chemistry - A European Journal, 2005 , vol. 11, # 2 p. 619 - 627

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Citation Number: 70

Abstract

Abstract Solutions of Fe III salts and β-keto esters have been investigated by means of electrospray ionization mass spectrometry. The complexes formed in such solutions have been considered previously as active intermediates in Fe III-catalyzed Michael additions. By using different Fe III salts with a set of β-keto esters, cation and anion mass spectra were analyzed and the effects of ester concentration, the role of the counterion, and the ...