caa a22 4500 47576028X CHVBK 20180406123548.0 cr unu---uuuuu 170329e20000301xx s 000 0 eng 10.1007/BF02494786 doi (NATIONALLICENCE)springer-10.1007/BF02494786 3,5-Bis(ferrocenylmethylene)-1-methyl-4-methylenepiperidine. Synthesis and some chemical properties [Elektronische Daten] [E. Klimova, M. Garcia, T. Klimova, L. Ramirez, J. Mendez Stivalet, N. Meleshonkova] 3,5-Bis(ferrocenylmethylene)-1-methyl-4-methylenepiperidine, a diferrocenyltriene with a fixeds-cisoid conformation of the exocyclic double bonds, was synthesized. On heating, this compound cyclodimerizes according to the [4+2]-cycloaddition scheme; it forms Diels-Alder adducts with azodicarboxylic and maleic acidN-phenylimides. The compound easily cyclodimerizes in the presence of acids by a proton cyclodimerization mechanism to give a spiro cyclodimer. The triene also adds a 3,5-bis(ferrocenylmethylene)-1,4-dimethyl-1-azonia-4-cyclohexyl salt to the terminal methylene group yielding linear and cyclic addition products. Kluwer Academic/Plenum Publishers, 2000 piperidine nationallicence triene nationallicence cyclodimerization nationallicence dimerization nationallicence fragmentation nationallicence allylic cation nationallicence ferrocene nationallicence Klimova E. Facultad de Quimica, Universidad Nacional Autonoma de Mexico, Cd. Universitaria, C.P. 04510, Mexico, D. F., Mexico aut Garcia M. Instituto de Quimica, Universidad Nacional Autonoma de Mexico, Cd. Universitaria, C. P. 04510, Mexico, D. F., Mexico aut Klimova T. Facultad de Quimica, Universidad Nacional Autonoma de Mexico, Cd. Universitaria, C.P. 04510, Mexico, D. F., Mexico aut Ramirez L. Facultad de Quimica, Universidad Nacional Autonoma de Mexico, Cd. Universitaria, C.P. 04510, Mexico, D. F., Mexico aut Mendez Stivalet J. Facultad de Quimica, Universidad Nacional Autonoma de Mexico, Cd. Universitaria, C.P. 04510, Mexico, D. F., Mexico aut Meleshonkova N. Department of Chemistry, M. V. Lomonosov Moscow State University, Leninskie Gory, 119899, Moscow, Russian Federation aut Russian Chemical Bulletin Kluwer Academic Publishers-Plenum Publishers 49/3(2000-03-01), 514-519 1066-5285 49:3<514 2000 49 11172 https://doi.org/10.1007/BF02494786 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02494786 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Klimova E. Facultad de Quimica, Universidad Nacional Autonoma de Mexico, Cd. Universitaria, C.P. 04510, Mexico, D. F., Mexico aut NATIONALLICENCE 700 1- Garcia M. Instituto de Quimica, Universidad Nacional Autonoma de Mexico, Cd. Universitaria, C. P. 04510, Mexico, D. F., Mexico aut NATIONALLICENCE 700 1- Klimova T. Facultad de Quimica, Universidad Nacional Autonoma de Mexico, Cd. Universitaria, C.P. 04510, Mexico, D. F., Mexico aut NATIONALLICENCE 700 1- Ramirez L. Facultad de Quimica, Universidad Nacional Autonoma de Mexico, Cd. Universitaria, C.P. 04510, Mexico, D. F., Mexico aut NATIONALLICENCE 700 1- Mendez Stivalet J. Facultad de Quimica, Universidad Nacional Autonoma de Mexico, Cd. Universitaria, C.P. 04510, Mexico, D. F., Mexico aut NATIONALLICENCE 700 1- Meleshonkova N. Department of Chemistry, M. V. Lomonosov Moscow State University, Leninskie Gory, 119899, Moscow, Russian Federation aut NATIONALLICENCE 773 0- Russian Chemical Bulletin Kluwer Academic Publishers-Plenum Publishers 49/3(2000-03-01), 514-519 1066-5285 49:3<514 2000 49 11172 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer