2,3-Diferrocenylcyclopropenone in the reaction with organomagnesium compounds |
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| Authors: | E I Klimova T Klimova L Ruiz Ramirez J M Mendez Stivalet S Hernandez Ortega M Martínez García |
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| Institution: | (1) Department of Chemistry, National Autonomous University of Mexico, Mexico, C. P. 04510, Mexico;(2) Institute of Chemistry, National Autonomous University of Mexico, Mexico, C. P. 04510, Mexico |
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| Abstract: | The reactions of 2,3-diferrocenylcyclopropenone with ethyl- and benzylmagnesium chlorides afford 3,3-diethyl- and 3,3-dibenzyl-1,2-diferrocenylcyclopropenes along with products of nucleophilic opening of the three-membered ring:  , -unsaturated and saturated ketones (cis-1,2-diferrocenylpent-1-en-3-one and cis-1,2-diferrocenyl-4-phenylbut-1-en-3-one, 4,5-diferrocenylheptan-3-one, and 3,4-diferrocenyl-1,5-diphenylpentan-2-one). The products of insertion of intermediate diferrocenyl(vinyl)carbene at one of the  -bonds of the starting 2,3-diferrocenylcyclopropenone were also isolated: 4-(2-oxo-1-ferrocenylbutyl)- and 4-(2-oxo-3-phenyl-1-ferrocenylpropyl)-2,3,4-triferrocenylcyclobutenones. 3,3-Dibenzyl-1,2-diferrocenylcyclopropene and one of the diastereomers of 4,5-diferrocenylheptan-3-one were studied by X-ray diffraction analysis. |
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| Keywords: | ferrocene 2 3-diferrocenylcyclopropenone 1 2-diferrocenylcyclopropenes diferrocenyl(vinyl)carbenes 2 3 4-triferrocenylcyclobutenones |
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