3936-51-4Relevant academic research and scientific papers
A Nanocrystal Catalyst Incorporating a Surface Bound Transition Metal to Induce Photocatalytic Sequential Electron Transfer Events
Beard, Matthew C.,Chen, Xihan,Han, Chuang,Lin, Yixiong,Martin, Jovan San,Miller, Collin,Wang, Xiaoming,Yamamoto, Nobuyuki,Yan, Yanfa,Yan, Yong,Yazdi, Sadegh,Zeng, Xianghua
supporting information, p. 11361 - 11369 (2021/08/16)
Heterogeneous photocatalysis is less common but can provide unique avenues for inducing novel chemical transformations and can also be utilized for energy transductions, i.e., the energy in the photons can be captured in chemical bonds. Here, we developed a novel heterogeneous photocatalytic system that employs a lead-halide perovskite nanocrystal (NC) to capture photons and direct photogenerated holes to a surface bound transition metal Cu-site, resulting in a N-N heterocyclization reaction. The reaction starts from surface coordinated diamine substrates and requires two subsequent photo-oxidation events per reaction cycle. We establish a photocatalytic pathway that incorporates sequential inner sphere electron transfer events, photons absorbed by the NC generate holes that are sequentially funneled to the Cu-surface site to perform the reaction. The photocatalyst is readily prepared via a controlled cation-exchange reaction and provides new opportunities in photodriven heterogeneous catalysis.
Synthesis of 6- to 10-membered ring (E)- hydroxyiminohydroazaazoniabenzocycloalkenes derivative from cyclization of 2-nitromethylene-1-(ω-phenylalkyl)imidazolidine or 2-nitromethylene-1- (ω-phenylalkyl)hexahydropyrimidine in trifluoromethanesulfonic acid
Coustard, Jean-Marie,Soro, Yaya,Siaka, Sorho,Bamba, Fanté,Cousson, Alain
, p. 3320 - 3328 (2007/10/03)
In trifluoromethanesulfonic acid, 2-nitromethylene-1-(ω-phenylalkyl) imidazolidine or 2-nitromethylene-1-(ω-phenylalkyl)hexahydropyrimidine derivatives undergo an intramolecular cyclization to afford (E)- hydroxyiminohydroazaazoniabenzocycloalkenes, in th
Antimalarial Polyamine Analogues
Edwards, M. L.,Stemeric, D. M.,Bitonti, A. J.,Dumont, J. A.,McCann, P. P.,et al.
, p. 569 - 574 (2007/10/02)
A series of novel tetraamines of the general formula RNH(CH2)xNH(CH2)yNH(CH2)xNHR was synthesized and examined for activity against growth of Plasmodium falciparum in vitro.Within the series, dibenzyl analogues (R = benzyl) were found to be the most effec
