Ferrocenylsubstituted α,β-unsaturated ketones in the synthesis of dihydropyrimidinethiones

The reaction has been studied of ferrocenylsubstituted α,β-unsaturated ketones with thiourea in alkaline ethanol leading to the corresponding dihydropyrimidinethiones. Products were isolated as yellow or orange crystals with yields of 65–95%. Structures were proved by high resolution 1H NMR spectra....

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Published inJournal of organometallic chemistry Vol. 456; no. 2; pp. 235 - 238
Main Authors Postnov, Vyacheslav N., Goncharov, Alexander V., Hocke, Ines, Krut'ko, Dmitry P.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 07.09.1993
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Summary:The reaction has been studied of ferrocenylsubstituted α,β-unsaturated ketones with thiourea in alkaline ethanol leading to the corresponding dihydropyrimidinethiones. Products were isolated as yellow or orange crystals with yields of 65–95%. Structures were proved by high resolution 1H NMR spectra. Ferrocenylsubstituted dihydropyrimidinethiones have been shown to convert quantitatively into the initial α,β-unsaturated ketones under heating with alkaline ethanol in the presence of water.
ISSN:0022-328X
1872-8561
DOI:10.1016/0022-328X(93)80431-A