Synthesis, postsynthetic modifications, and applications of the first quinoxaline-based covalent organic framework

VA Kuehl, PHH Duong, D Sadrieva… - … Applied Materials & …, 2021 - ACS Publications
We report a new synthetic protocol for preparing highly ordered two-dimensional
nanoporous covalent organic frameworks (2D-COFs) based on a quinoxaline backbone …

Synthesis and Optical Properties of Diaza‐and Tetraazatetracenes

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 …

Synthesis and biological evaluation of 4-alkoxy-6, 9-dichloro [1, 2, 4] triazolo [4, 3-a] quinoxalines as inhibitors of TNF-α and IL-6

A Guirado, JIL Sánchez, AJ Ruiz-Alcaraz… - European journal of …, 2012 - Elsevier
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 …

Self-assembled pyrazinacene nanotubes

GJ Richards, JP Hill, J Labuta, Y Wakayama… - Physical Chemistry …, 2011 - pubs.rsc.org
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 …

First synthesis and biological evaluation of 4-amino-2-aryl-6, 9-dichlorobenzo [g] pteridines as inhibitors of TNF-α and IL-6

A Guirado, JIL Sánchez, AJ Ruiz-Alcaraz… - European Journal of …, 2013 - Elsevier
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 …

5,12‐Diacetyl‐5,12‐dihydroquinoxalino[2,3‐b]quinoxalines: Solid‐State Fluorescence, AIE Properties, and Orbital Switching by Substituent Effect

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 …

Reactions of Large Tetraaza-N,N′-dihydroacenes: Formation of Unexpected Adducts and an Unstable Tetraazahexacene

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 …

First synthesis of 5, 8-dichloro-3-(2-pyridyl) benzo [e][1, 2, 4] triazines by reaction of 3, 3, 6, 6-tetrachloro-1, 2-cyclohexanedione with 2-pyridylamidrazones …

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 …

1,4-Diaryl-7,10-dimethoxyquinoxalino[2,3-b]quinoxalines and Their Dihydro Derivatives: Redox Switching of NIR Absorption and Fluorescence

Y Miura, H Kawai, K Fujiwara, T Suzuki - Chemistry Letters, 2011 - academic.oup.com
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 …

Reactions of 5, 8-dichloro-2, 3-dicyanoquinoxaline with amines and hydrazines. A new and efficient synthetic approach to 3-amino-5, 8-dichloroflavazoles

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 …