Carolina B. P. LigiƩro, Luis G. T. A. Duarte, Paulo C. M. L. Miranda, Synthesis of Tetra(imidazoil-4(5)-yl)pyrazine and Tetrapyrazilpyrazine, Blucher Chemistry Proceedings, Volume 1, 2013, Pages 208-208, ISSN 23184043, http://dx.doi.org/10.5151/chempro-14bmos-R0208-1 (www.proceedings.blucher.com.br/article-details/synthesis-of-tetraimidazoil-45-ylpyrazine-and-tetrapyrazilpyrazine-8059) Palavras-chave:: ;