%0 Journal Article 
%A Pablo, María S. de
%A Gandasegui Rodríguez, María Teresa
%A Vaquero López, Juan J.
%A García Navío, José Luis
%A Álvarez-Builla Gómez, Julio
%T Bridged 2,2'-biazole derivatives by 1,3-dipolar cycloaddition
%D 1992
%@ 0040-4020
%U http://hdl.handle.net/10017/3592
%X Azomethine ylides derived from 3,4-dihydropyrrolo[1,2-a]pyrazinium salts undergo 1,3-dipolar cycloaddition reactions to yield 5,6-dihydrodipyrrolo[1,2-a:2',1'-c]-pyrazine and 5,6-dihydroimidazo[1,2-a]-pyrrolo[2,1-c]pyrazin-4-inium-2-olate and 2-thiolate derivatives. S-Methylation followed by nucleophilic displacement of methylthio group convened the 2-thiolate derivatives into new conjugated betaines.
%K Cavity-shaped molecules
%K Annelated derivatives
%K Ruthenium(II)
%K Complexes
%K Polyaza
%K 2,2'-bipyridine
%K Pyridinium
%K 2-(2'-Pyridyl)-1,8-Naphthyridine
%K 2,2'-bi-1,8-Naphthyridine
%K Catalysis
%K Ciencia
%K Química orgánica
%K Science
%K Chemistry, organic
%~ Biblioteca Universidad de Alcala