Near-infrared absorbing methine dyes based on dicyanovinyl derivatives of indane-1,3-dione
作者:Kasali A. Bello、Lubai Cheng、John Griffiths
DOI:10.1039/p29870000815
日期:——
The synthesis, colour, and constitution of methinedyes formed by condensation of benzaldehydes and nitrosobenzenes with dicyanovinyl analogues of indane-1,3-dione have been investigated. 3-Dicyanovinylindan-1-one (3) and 1,3-bisdicyanovinylindane (5) give magenta (λmax.ca. 560 nm) and blue (λmax.ca. 600 nm) dyes respectively with 4-dialkylaminobenzaldehydes. Aza analogues formed from (3) and (5) and
Green routes for the synthesis of new pyrazole bearing biologically active imidiazolyl, pyridine and quinoxaline derivatives as promising antimicrobial and antioxidant agents
作者:Seham A. Ibrahim、Hala F. Rizk、Mohamed A. El-Borai、Mohamed E. Sadek
DOI:10.1007/s13738-020-02119-2
日期:2021.6
In an effort to discover new imidazolyl nucleus belonging to the family of N-fused heterocyclic compounds which display broad spectrum of biological applications, a series of novel imidazolyl pyrazolopyridines 3a,b–7a,b and imidazolyl pyrazoloquinoxaline 8a–d were synthesized. The structures of all the synthesized compounds were confirmed using spectroscopic data and elemental analyses. The compounds
A Photoinduced Nonadiabatic Decay‐Guided Molecular Motor Triggers Effective Photothermal Conversion for Cancer Therapy
作者:Jen‐Shyang Ni、Xun Zhang、Guang Yang、Tianyi Kang、Xiangwei Lin、Menglei Zha、Yaxi Li、Lidai Wang、Kai Li
DOI:10.1002/anie.202002516
日期:2020.7.6
non‐radiatively through the conical intersection (CI) of internal conversion, which is called photoinducednonadiabaticdecay. Such agents possess a high PTCE of 90.0 %, facilitating low‐temperature photothermaltherapy in the presence of a heat shock protein 70 inhibitor. In addition, the behavior and mechanism of NIR laser‐triggeredmolecular motions for generating heat through the CI pathway have been
New 1,3,4-thiadiazole derivatives containing a diazenyl group, as well as both a diazenyl and an imino group, were synthesized and their optical and thermal properties were investigated. Initially, newazo compounds containing an azo group directly in the thiadiazole block were obtained by the coupling of diazonium bisulfates based on the previously known 5-derivatives of 2-amino-1,3,4-thiadiazoles
合成了新的 1,3,4-噻二唑衍生物,包含一个二氮烯基,以及一个二氮烯基和一个亚氨基,并研究了它们的光学和热性能。最初,通过将基于先前已知的 2-氨基-1,3,4-噻二唑的 5-衍生物的重氮硫酸氢盐与N , N-二烷基苯胺偶联,获得了在噻二唑嵌段中直接含有偶氮基团的新偶氮化合物( N( n- Bu) 2、NEt 2和NEt(EtOH))。通过对甲苯胺、对苯二胺和对苯二胺的相互作用获得席夫碱-氨基苯酚与在 1,3,4-噻二唑环中含有醛基的偶氮化合物。通过光谱(IR、UV、1 H NMR、13 C NMR 和质谱)和 X 射线分析对新染料进行了表征。