7152-42-3Relevant academic research and scientific papers
Effective suppression of interfacial charge recombination by a 12-crown-4 substituent on a double-anchored organic sensitizer and rotating disk electrochemical evidence
Li, Chun-Ting,Wu, Feng-Ling,Liang, Chia-Jung,Ho, Kuo-Chuan,Lin, Jiann T.
, p. 7586 - 7594 (2017)
Mono/double-anchored phenothiazine-based dyes (DCE1-DCE4) containing various N-substituents (12-crown-4-substituted phenyl, 4-hexoxyphenyl, and bare phenyl) were synthesized and applied as sensitizers for dye-sensitized solar cells (DSSCs). The incorporat
Access to Phenothiazine Derivatives via Iodide-Mediated Oxidative Three-Component Annulation Reaction
Chen, Qinghua,Xie, Rong,Jia, Huanhuan,Sun, Jialu,Lu, Guangpeng,Jiang, Huanfeng,Zhang, Min
, p. 5629 - 5637 (2020)
Herein, a new iodide-mediated three-component annulation reaction of secondary anilines, cyclohexanones, and elemental sulfur is demonstrated, which allows access to various phenothiazines with the merits of formation of multiple chemical bonds in one single operation, high step and atom efficiency, readily available feedstocks and catalyst system, and good substrate and functional group compatibility. The developed chemistry capable of constructing novel phenothiazines with structural diversity offers a significant basis for further applications.
Photoredox Catalytic Activation of Sulfur Hexafluoride for Pentafluorosulfanylation of α-Methyl- and α-Phenyl Styrene
Rombach, David,Wagenknecht, Hans-Achim
, p. 2955 - 2961 (2018)
Sulfur hexafluoride is inert, non-toxic, and cannot simply be applied as pentafluorosulfanylation reagent. We present the first photoredox catalytic way to convert it into pentafluorosulfanylated α-methyl and α-phenyl styrenes simply by using light. The work tackles the challenges of precise activation of sulfur hexafluoride by a photoredox catalyst with designed consecutive electron transfer cycles in a fashion that styrenes trap the generated pentafluorosulfanyl radical. The method overcomes the highly problematic access to vinylic and allylic pentafluorosulfanyl styrenes and combines it with the disposal of the most potent greenhouse gas. Together with the use of light as energy source, an exceptionally high level of sustainability is gained.
Metal-free atom transfer radical polymerization
Treat, Nicolas J.,Sprafke, Hazel,Kramer, John W.,Clark, Paul G.,Barton, Bryan E.,Read De Alaniz, Javier,Fors, Brett P.,Hawker, Craig J.
, p. 16096 - 16101 (2014)
Overcoming the challenge of metal contamination in traditional ATRP systems, a metal-free ATRP process, mediated by light and catalyzed by an organic-based photoredox catalyst, is reported. Polymerization of vinyl monomers are efficiently activated and de
Photoredox Catalytic α-Alkoxypentafluorosulfanylation of α-Methyl- and α-Phenylstyrene Using SF6
Rombach, David,Wagenknecht, Hans-Achim
, p. 300 - 303 (2020)
SF6 was applied as pentafluorosulfanylation reagent to prepare ethers with a vicinal SF5 substituent through a one-step method involving photoredox catalysis. This method shows a broad substrate scope with respect to applicable alcoh
In Situ Switching of Photoinduced Electron Transfer Direction by Regulating the Redox State in Fullerene-Based Dyads
Chai, Yongqiang,Liu, Xiaolong,Wu, Bo,Liu, Liping,Wang, Zhuan,Weng, Yuxiang,Wang, Chunru
, p. 4411 - 4418 (2020)
Novel fullerene-based donor-acceptor (DA) dyads, Sc3N@C80-PTZ and C60-PTZ, have been synthesized and investigated in which the photoinduced electron transfer direction is proved to be switchable by regulating the redox state. In detailed photophysical exp
Organic room-temperature phosphorescent material as well as preparation method and application thereof
-
Paragraph 0074-0080, (2021/02/06)
The invention discloses an organic room-temperature phosphorescent material as well as a preparation method and application thereof. The structure of the phosphorescent material is shown as a formula(I), a formula (II) or a formula (III). The molecules all contain one or more phenothiazine units, and when the molecules are dispersed and immobilized in a rigid matrix PMMA, the material doped withthe molecules can be induced to generate room-temperature phosphorescence under the excitation of an ultraviolet lamp. Phenothiazine derivative molecules promote oxygen molecules in a matrix materialto be converted into singlet oxygen in the light induction process, and after the oxygen molecules are greatly consumed, the phenothiazine derivative molecules emit phosphorescence due to the fact that non-radiative energy dissipation is inhibited by a rigid environment provided by the matrix. The activated material can be inactivated again by heating or standing for a long time, and the process can be carried out repeatedly. The molecules in the invention can realize light-induced information writing and erasing in a transparent polymer matrix material, material support is provided for organic light information storage, reading and writing, and the practicability is extremely high.
Singlet oxygen type photosensitizer material with aggregation-induced emission property as well as preparation method and application of singlet oxygen type photosensitizer material
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Paragraph 0056-0060, (2021/07/14)
The invention discloses a singlet oxygen type photosensitizer material with aggregation-induced emission performance as well as a preparation method and application of the singlet oxygen type photosensitizer material. The method comprises the following st
Synthesis of Glycosyl Fluorides by Photochemical Fluorination with Sulfur(VI) Hexafluoride
Bannykh, Anton,Khomutnyk, Yaroslav,Kim, Sungjin,Nagorny, Pavel
supporting information, p. 190 - 194 (2021/01/13)
This study describes a new convenient method for the photocatalytic generation of glycosyl fluorides using sulfur(VI) hexafluoride as an inexpensive and safe fluorinating agent and 4,4′-dimethoxybenzophenone as a readily available organic photocatalyst. This mild method was employed to generate 16 different glycosyl fluorides, including the substrates with acid and base labile functionalities, in yields of 43%-97%, and it was applied in continuous flow to accomplish fluorination on an 7.7 g scale and 93% yield.
Light-promoted synthesis of surface-grafted polymers bearing pyridine groups by metal-free ATRP in microliter volumes
Hatalak, Anna,S?owikowska, Monika,Wójcik, Artur J.,Wolski, Karol,Zapotoczny, Szczepan
, (2021/10/08)
Polymers with pendant pyridine groups (PPPGs) are pH responsive weak polyelectrolytes potentially attractive for many applications such as sensors, antibacterial coatings, and ion gating systems. Synthesis of PPPGs by classical atom transfer radical polym
