Exocyclic Ferrocenyl Dienones: Some Diferrocenal Ketones and Structural Correlations with Certain Spectroscopic Properties
Science Direct Working Paper No S1574-0331(04)70379-3
3 Pages Posted: 1 Jun 2017 Last revised: 16 Dec 2017
Date Written: October 2000
Abstract
A series of cyclic ketones is condensed with ferrocenecarboxaldehyde to yield cross-conjugated diferrocenal (diferrocenylidene) ketones [in this work, from cyclobutanone (C up to and including cycloöctanone C 8)]. Placement of the vinyl protons as transoid is done via X-Ray Crystallography. Moreover, there appears to be maximal deshielding of these protons at the C ring while the carbonyl stretching frequency decreases regularly with increasing ring size.
Keywords: Organic Chemistry > Organometallic Chemistry, orgchem/0010003
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