caa a22 4500 467990670 CHVBK 20180323112543.0 cr unu---uuuuu 170328e19900101xx s 000 0 eng 10.1007/BF00506855 doi (NATIONALLICENCE)springer-10.1007/BF00506855 2,5-bis(trifluoromethyl)-1,3,4-oxadiazole in cycloaddition reactions [Elektronische Daten] [N. Vasil'ev, Yu. Lyashenko, M. Galakhov, A. Kolomiets, A. Gontar', G. Sokol'skii] The cycloaddition of 2,5-bis(trifluoromethyl)-1,3,4-oxadiazole to dienophiles with cyclic and acyclic structures takes place according to a two-step mechanism with the extrusion of nitrogen and results in the formation of derivatives of 7-oxabicyclo [2.2.1]heptanes. A significant influence of the donor properties of the dienophiles, as well as of the spatial factors, on the realization of these processes has been discovered. However, solvation efects do not have a significant effect on the formation of the cycloadducts. The regio- and stereoselectivity of the cyclo-addition reactions has been noted. Plenum Publishing Corporation, 1990 Vasil'ev N. aut Lyashenko Yu aut Galakhov M. aut Kolomiets A. aut Gontar' A. aut Sokol'skii G. aut Chemistry of Heterocyclic Compounds Kluwer Academic Publishers-Plenum Publishers 26/1(1990-01-01), 81-85 0009-3122 26:1<81 1990 26 10593 https://doi.org/10.1007/BF00506855 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00506855 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Vasil'ev N. aut NATIONALLICENCE 700 1- Lyashenko Yu aut NATIONALLICENCE 700 1- Galakhov M. aut NATIONALLICENCE 700 1- Kolomiets A. aut NATIONALLICENCE 700 1- Gontar' A. aut NATIONALLICENCE 700 1- Sokol'skii G. aut NATIONALLICENCE 773 0- Chemistry of Heterocyclic Compounds Kluwer Academic Publishers-Plenum Publishers 26/1(1990-01-01), 81-85 0009-3122 26:1<81 1990 26 10593 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer