Reaction of 1, 1′, 2, 2′-Tetrakis (phenylamino) Ethane with Glyoxal; Synthesis of N2, N3, N7, N8, 1, 4, 5, 6, 9, 10 -Decaphenyltetradecahydro - dipyrazino [2, 3-b: 2, 3-e] Pyrazine-2, 3, 7, 8 -Tetraamine and 5, 6 -bis (ethoxy) -N2, N3, 1, 4 -Tetraphenylhexahydro -2, 3- Pyrazinediamine

• Main Authors: Ali Kakanejadifard, Sayed Morteza Farnia, Issa Kakoiedinaki
• Format: Article
• Language: English
• Published: Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR 2005-06-01
• Series: Iranian Journal of Chemistry & Chemical Engineering
• Subjects: polyazapolycyclic; hexabenzyl-hexaaza-isowortzitane; tetraazabicyclo [3, 3, 0] octane; 1,1′, 2, 2′-tetrakis (phenylamino) ethane; n2, n3, n7, n8, 1, 4, 5, 6, 9, 10-decaphenyltetradecahydrod- pyrazino [2, 3-b: 2, 3-e] pyrazine-2, 3, 7, 8-tetraamine; 5, 6-bis (ethoxy)-n2, n3, 1, 4-tetraphenylhexa- hydro -2, 3-pyrazinediamine
• Online Access: http://www.ijcce.ac.ir/article_8123_126cf4002691b6b2a4bcd6dd1bded6fe.pdf
• ISSN: 1021-9986; 1021-9986

Compound N2, N3, N7, N8, 1, 4, 5, 6, 9, 10-decaphenyltetradecahydrodipyrazino [2, 3-b: 2, 3-e] pyrazine-2, 3, 7, 8-tetraamine (4) was prepared by condensation of 1, 1′, 2, 2′-tetrakis (phenylamino) ethane (1d) and glyoxal in EtOH or i-PrOH. Also, reaction of 1d with glyoxal in equimolare in EtOH resulted 5,6-bis (ethoxy)-N2, N3, 1, 4-tetraphenylhexahydro-2, 3-pyrazinediamine (5). The natures of products are sensitive to acidity, temperature and solvent. In acidic media, 4 and 5 are unstable and degraded to diimine 6.