30489-65-7Relevant academic research and scientific papers
A tetranaphthoimidazolium receptor as a fluorescent chemosensor for phytate
Lee, Minji,Moon, Jong Hun,Jun, Eun Jin,Kim, Gyoungmi,Kwon, Yong-Uk,Lee, Jin Yong,Yoon, Juyoung
, p. 5851 - 5853 (2014)
A new tetranaphthoimidazolium receptor was synthesized and reported to be a selective fluorescent chemosensor for phytate, myo-inositol hexakisphosphate (IP6). In a 100% aqueous solution at pH 7.4, chemosensor 1 showed a selective fluorescence enhancement for IP6 over IP3, phosphates, pyrophosphates, AMP, ADP and ATP. An excimer emission at 465 nm linearly increases in the range of 300 nM to 1 μM with a detection limit of 2.28 × 10-7 M. In addition, first live cell imaging of IP 6 has been demonstrated by using a synthetic receptor. This journal is the Partner Organisations 2014.
Using Methanol as a Formaldehyde Surrogate for Sustainable Synthesis of N-Heterocycles via Manganese-Catalyzed Dehydrogenative Cyclization
Li, Yibiao,Liu, Qiang,Shao, Zhihui,Yuan, Shanshan
supporting information, (2022/02/23)
The development of an efficient and sustainable synthetic route for formaldehyde production from renewable feedstock, especially in combination with a subsequent transformation to straightforwardly construct valuable chemicals, is highly desirable. Herein, we report a novel manganese-catalyzed dehydrogenative cyclization of methanol as a formaldehyde surrogate with a variety of dinucleophiles for facile synthesis of N-heterocycles. The in situ generated formaldehyde via catalytic methanol dehydrogenation can be selectively trapped by diverse dinucleophiles to avoid several possible side reactions. The utility of this transformation is further highlighted by its successful application to the synthesis of 13C-labeled N-heterocycles using 13CH3OH as a readily accessible 13C-isotope reagent.
Endoplasmic Reticulum-Targeted Ratiometric N-Heterocyclic Carbene Borane Probe for Two-Photon Microscopic Imaging of Hypochlorous Acid
Pak, Yen Leng,Park, Sang Jun,Song, Gyeongok,Yim, Yubin,Kang, Hyuk,Kim, Hwan Myung,Bouffard, Jean,Yoon, Juyoung
, p. 12937 - 12943 (2018/11/02)
The naphthoimidazolium borane 4 is shown to be a selective probe for HOCl over other reactive oxygen species. Unlike other boronate-reactive oxygen species (ROS) fluorogenic probes that are oxidized by HOCl through a nucleophilic borono-Dakin oxidation mechanism, probe 4 is distinguished by its electrophilic oxidation mechanism involving B-H bond cleavage. Two-photon microscopy experiments in living cells and tissues with the probe 4 demonstrate the monitoring of endogenous HOCl generation and changes in HOCl concentrations generated in the endoplasmic reticulum during oxidative stress situations.
Ratiometric fluorescence sensing of fluoride ions by an asymmetric bidentate receptor containing a boronic acid and imidazolium group
Xu, Zhaochao,Kim, Sook Kyung,Han, Su Jung,Lee, Chongmok,Kociok-Kohn, Gabriele,James, Tony D.,Yoon, Juyoung
experimental part, p. 3058 - 3065 (2009/12/01)
The synthesis of the first examples of aoion receptors that utilize boron-fluoride interactions and (C-H)+-F～-t:ype ionic hydrogen-bond interactions in. the binding of F ions is reported herein, o-, m-, and p-Phenylboronic acids were linked to
Solid-phase synthesis of 1,2-benzophenazine and some fused imidazole derivatives
Zefirov,Sereda,Volkov,Tkachenko,Zyk
, p. 577 - 579 (2007/10/03)
The solid-phase synthesis of 1,2-benzophenazine and various N-methylbenzimidazoles using o-diaminoarenes is very promising and permits the synthesis of 1-methyl-4,5-[b]naphtho-1H-imidazole, which could not be obtained by the condensation of o-diaminoarenes with paraformaldehyde using the standard liquid-phase method. 1996 Plenum Publishing Corporation.
