%0 Journal Article %A Minguez Ortega, José Miguel %A Castellote Álvaro, María Isabel %A Vaquero López, Juan J. %A García Navío, José Luis %A Álvarez-Builla Gómez, Julio %A Castaño González, Obis Dionisio %A Andrés, José L. de %T Pyrrolodiazines. 4. Structure and chemistry of 3,4-dihydropyrrolo[1,2-a]pyrazine %D 1997 %@ 0040-4020 %U http://hdl.handle.net/10017/4174 %X The structure of 3,4-dihydropyrrolo[1,2-a]pyrazine and its N-protonated form is studied by ab initio calculations. Examples of the reactivity of this poorly studied system are presented in which it is shown that the imino moiety does not react with dienes but does undergo inter- and intramolecular 1,3-dipolar cycloadditions by reaction of azomethine ylides of this bicyclic system with suitable dipolarophiles. %K Pyrrolodiazines %K Dipolarophiles %K Ciencia %K Química orgánica %K Science %K Chemistry, organic %~ Biblioteca Universidad de Alcala