ethene moiety were synthesized. One derivative having thiazole rings showed the expected coloration reaction by excitation at 313 nm (to a higher singlet state) but not when excited at 635 nm (S0 to S1 excitation). The system demonstrates that the cyclization reaction can be controlled by selective excitation at different wavelengths of the absorption spectrum. On the other hand, another derivative
Anti-Cancer and Anti-Inflammatory Activities of Bromo- and Cyano-Substituted Azulene Derivatives
作者:Furkan Ayaz、Abdulcelil Yuzer、Tuncay Ince、Mine Ince
DOI:10.1007/s10753-020-01186-0
日期:2020.6
production has not been studied yet. Moreover, its derivative potential has not been characterized extensively. In our study, we examined the cytotoxic, immunomodulatory and immunostimulatory potential of bromo- and cyano-substituted azulenes on the mammalian macrophages. These unique compounds had differential effects on the production of pro-inflammatory cytokines and they were anti-inflammatory immunomodulators
Azulenocyanine, having four azuleneunitsfused to a tetraazaporphyrin skeleton, is a structural isomer of naphthalocyanine. We synthesized the first example of an azulenocyanine from 1,3-di-tert-butyl-5,6-dicyanoazulene. The macrocycle exhibits broad absorption over the visible and near-IR regions far beyond 1000 nm. Theoretical calculations and electrochemical experiments show the LUMO energy level
Non-covalent versus covalent donor–acceptor systems based on near-infrared absorbing azulenocyanines and C60 fullerene derivatives
作者:Mine Ince、Anita Hausmann、M. Victoria Martínez-Díaz、Dirk M. Guldi、Tomás Torres
DOI:10.1039/c2cc30632h
日期:——
A novel supramolecular electron donor-acceptor hybrid (2.1) and an electron donor-acceptor conjugate (3), both exhibiting a remarkably shifted Q band in the NIR region of the solar spectrum, were prepared. Irradiation of the supramolecular ensemble 2.1 within the visible range leads to a nanosecond lived radical-ion pair state Zn-azulenocyanine (+)-C(60) (-).
Azuleno[5,6-c]furan and 4-chloroazuleno[4,5-c]furan have been prepared by a tandem cycloaddition-cycloreversion strategy. These azulenofurans are qualitatively more stable than isobenzofuran and were characterised spectroscopically and as their Diels-Alder adducts with N-methylmaleimide.