Michael additions to metallocene analogues of chalcones
- 1 January 1987
- journal article
- Published by Institute of Organic Chemistry & Biochemistry in Collection of Czechoslovak Chemical Communications
- Vol. 52 (1) , 174-181
- https://doi.org/10.1135/cccc19870174
Abstract
Eleven analogues of chalcones were synthesized; the variously substituted ferrocenyl, ruthenocenyl or η5-cyclopentadienyltricarbonylmanganese are attached to the β-carbon of the chalcone double bond. Methyl malonate was added to eight selected chalcones. The effect of an aryl group on the chemical shift difference of diastereotopic -COOCH3 groups is discussed. The Vilsmeier-Haack formylation was employed to prepare 1'-chloro and 1'-bromoferrocenecarbaldehydes. The synthesis of 2-chloroferrocenecarbaldehyde from 2-chloroferrocenylmethyldimethylamine is also described.Keywords
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