41337-62-6Relevant academic research and scientific papers
Capture and Release of Singlet Oxygen in Coordination-Driven Self-Assembled Organoplatinum(II) Metallacycles
Fudickar, Werner,Han, Jun,He, Yan-Qin,Li, Xiaopeng,Linker, Torsten,Liu, Min,Stang, Peter J.,Tang, Jian-Hong,Wang, Heng,Wang, Zhengping,Zhong, Yu-Wu
, p. 2601 - 2608 (2020)
Singlet oxygen (1O2), as an important active reagent, has found wide applications in photodynamic therapy (PDT), synthetic chemistry, and materials science. Organic conjugated aromatics serving as hosts to capture and release singlet
Antimicrobial photodynamic efficiency of novel cationic porphyrins towards periodontal gram-positive and gram-negative pathogenic bacteria
Prasanth, Chandra Sekhar,Karunakaran, Suneesh C.,Paul, Albish K.,Kussovski, Vesselin,Mantareva, Vanya,Ramaiah, Danaboyina,Selvaraj, Leslie,Angelov, Ivan,Avramov, Latchezar,Nandakumar, Krishnankutty,Subhash, Narayanan
, p. 628 - 640 (2014)
The Gram-negative Aggregatibacter actinomycetemcomitans and Fusobacterium nucleatum are major causative agents of aggressive periodontal disease. Due to increase in the number of antibiotic-resistant bacteria, antimicrobial Photodynamic therapy (aPDT) see
Engineering COFs as smart triggers for rapid capture and controlled release of singlet oxygen
Chen, Yao,Cheng, Peng,Jin, Fazheng,Lin, En,Qiao, Shan,Wang, Zhifang,Xiong, Fanhao,Yan, Dong,Yang, Yi,Zhang, Zhenjie
, p. 27434 - 27441 (2021/12/24)
Capture and controlled release of singlet oxygen (1O2) are of great significance but very challenging due to its very short lifetime and high reactivity. To address this challenge, we rationally designed and fabricated a highly crystalline, robust, and porous three-dimensional covalent organic framework (3D COF) by installing functional anthracene moieties on its skeleton for1O2related applications. Attributed to its open networks, regular channels, and light skeletal density, the active anthracene sites in the 3D COF can be easily and fully accessed, hence affording superior performance compared with other materials such as 2-dimensional COFs and amorphous polymers. Notably, the 3D COF displays the current record-high1O2capture rate among all reported porous materials, verified by various characterization techniques and rational analysis. Furthermore, we used the 3D COF platform as a stimuli-responsive smart material for anti-fake applications. This study not only provides an outstanding platform for1O2capture and release but also extends the application scope of COFs.
OXIDATION OF DIENES BY TRIPHENYLPHOSPHINE PEROXOPALLADIUM
Dagonneau, M.,Fauvarque, J. F.
, p. 113 - 118 (2007/10/02)
Thermal reaction of 1,3-diphenylisobenzofuran and tetramethylcyclopentadienone with PdLO2 complex (L = PPh3) gives compounds identical to those produced by singlet molecular oxygen.Photochemical reaction of 1,9-diphenylanthracene with PdLO2 or PdL3 in the presence of oxygen gives the 9,10-endoperoxide adduct.
Lewis-Acid-Catalysed Reaction of Oxygen with 1,3-Diphenylisobenzofuran, Tetraphenylfuran and Tetraphenylcyclopentadiene
Haynes, Richard K.,Peters, Jennifer M.,Wilmot, Ian D.
, p. 2653 - 2661 (2007/10/02)
1,3-Diphenylisobenzofuran is converted into o-dibenzoylbenzene (40-70percent) by oxygen, either in dichlorometane at -78 deg C in the presence of 1-2 equiv. of a variety of Lewis acids, or on silica gel at 20 deg C, in the dark.Tetraphenylfuran is converted into (Z)-dibenzoylstilbene (55-65percent) under the former conditions in the presence of 0.05 equiv. of I2 or SnI4 under irradiation from a tungsten lamp.The conversions, which correspond to a mono-oxygenation process, do not involve as intermediates the furan endoperoxides, which were independently generated from the furans by use of singlet oxygen. 2,5-Dimethylfuran and p-menthofuran do not react with oxygen in the presence of Lewis acids under the foregoing conditions.Tetraphenylcyclopentadiene is converted by oxygen into the corrsponding endoperoxide (70-85percent) in the presence of 0.05 equiv. of I2 and SnI4 or 0.1 equiv. of Ph3C+BF4- in dichloromethane at -78 deg C under irradiation.
