Pyrrolodiazines. 4. Structure and chemistry of 3,4-dihydropyrrolo[1,2-a]pyrazine
作者:JoséM. Minguez、Isabel Castellote、Juan J. Vaquero、JoséL. Garcia Navio、Julio Alvarez-Builla、Obis Castaño、JoséL. Andrés
DOI:10.1016/s0040-4020(97)00587-5
日期:1997.7
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. (C) 1997 Elsevier Science Ltd.