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Diferrocenylcyclopropenyl cations. Synthesis, structures, and some chemical properties |
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| Authors: | Elena I. Klimova,Tatiana Klimova Berestneva,Daniel Mé ndez Iturbide,Marcos Martí nez Garcí a |
| Affiliation: | a Facultad de Química, Universidad Nacional Autónoma de México, Cd. Universitaria, Coyoacán, C.P. 04510, México D.F., Mexico b Instituto de Química, Universidad Nacional Autónoma de México, Cd. Universitaria, Coyoacán, C.P. 04510, México D.F., Mexico c Departamento de Ciencias de la Salud, Universidad Autónoma de Tlaxcala, Av. Xicotencatl No 1,Tlaxcala, Tlaxcala, C.P. 90070, Mexico |
| Abstract: | Synthesis of diferrocenylcyclopropenyl tetrafluoroborates with hetero-substituents in the three-membered ring, viz., ethoxy, trityloxy, ferrocenyl(phenyl)methoxy, N,N-diethylamino, piperidino, and morpholino, is described. The spatial structure of diferrocenyl(morpholino)cyclopropenyl tetrafluoroborate was established based on the data from X-ray diffraction analysis. Under the action of potassium tert-butoxide, all the diferrocenylcyclopropenyl tetrafluoroborates undergo three-membered ring-opening with formation of the corresponding 2,3-diferrocenylacrylic acid derivatives. A mechanism of the ring-opening is suggested. |
| Keywords: | Ferrocene Diferrocenylcyclopropenes Diferrocenylcyclopropenyl tetrafluoroborates Derivatives of 2,3-diferrocenylacrylic acid Ring opening X-ray structural analysis |
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