BD Lindner, JU Engelhart, M Märken… - … A European Journal, 2012 - Wiley Online Library
A series of functionalized diaza‐and tetraazatetracenes was synthesized, either by condensation of an aromatic diamine with an ortho‐quinone/diethyloxalate followed by …
An efficient synthetic method for previously unattainable 4-alkoxy-6, 9-dichloro [1, 2, 4] triazolo [4, 3-a] quinoxalines has been established. Reactions between 5, 8-dichloro-2, 3 …
Nanotubes of a pentacene derivative, 6, 13-bis (1-n-dodecyl)-[a, c, l, n]-tetrabenzo-5, 6, 7, 12, 13, 14-hexaazapentacene, have been prepared by a hierarchical self-assembly …
A direct new synthetic method on the chemistry of benzo [g] pteridines is reported. Reactions between 5, 8-dichloro-2, 3-dicyanoquinoxaline and benzamidines gave 4-amino-2-aryl-6, 9 …
Y Miura, N Yoshioka - Chemistry–An Asian Journal, 2018 - Wiley Online Library
Abstract The compound 5, 12‐diacetyl‐5, 12‐dihydroquinoxalino [2, 3‐b] quinoxaline 1 a and its derivatives were prepared, and their solid‐and solution‐state spectroscopic …
JU Engelhart, BD Lindner, O Tverskoy… - The Journal of …, 2013 - ACS Publications
Reactions of Large Tetraaza-N,N′-dihydroacenes: Formation of Unexpected Adducts and an Unstable Tetraazahexacene | The Journal of Organic Chemistry ACS ACS Publications C&EN …
A Guirado, JIL Sánchez, R Moreno, J Gálvez - Tetrahedron Letters, 2013 - Elsevier
A new approach to selected 1, 2, 4-benzotriazines has been developed. 3, 3, 6, 6- Tetrachloro-1, 2-cyclohexanedione reacted with 2-pyridylamidrazones to give unexpected …
Due to the high-lying HOMO of the substituents and the low-lying LUMO inherited by the heterocyclic skeleton, the title quinoxalinoquinoxalines 1 exhibit absorption bands which …
A Guirado, JIL Sánchez, D Bautista - Tetrahedron, 2011 - Elsevier
Abstract Reactions of 5, 8-dichloro-2, 3-dicyanoquinoxaline with primary amines and hydrazines under different experimental conditions were investigated. Alkylamines provided …