6457-57-4Relevant academic research and scientific papers
Carbon dots as photocatalysts for organic synthesis: Metal-free methylene-oxygen-bond photocleavage
Cailotto, Simone,Negrato, Matteo,Daniele, Salvatore,Luque, Rafael,Selva, Maurizio,Amadio, Emanuele,Perosa, Alvise
supporting information, p. 1145 - 1149 (2020/03/11)
We report for the first time that irradiation of four different citric acid-derived carbon dots (CDs), in the absence of any other redox mediators, promotes an organic reaction. In this proof-of-concept study methylene-oxygen bond reductive photocleavage in N-methyl-4-picolinium esters is demonstrated. Cyclic voltammetry and UV-Vis spectra of the CDs and of the esters indicate that photocleavage reactivity correlates with the redox properties and the relative energies expressed in the Fermi scale. A photo-fragmentation mechanism is proposed. This study offers a new possibility to employ inexpensive and readily available CDs to promote photo-organic reactions.
Photorelease of primary aliphatic and aromatic amines by visible-light-induced electron transfer
Edson, Joseph B.,Spencer, Liam P.,Boncella, James M.
supporting information; experimental part, p. 6156 - 6159 (2012/01/05)
Visible-light-absorbing tris(bipyridyl)ruthenium(II) has been used to mediate electron transfer to N-methylpicolinium carbamates that undergo C-O bond fragmentation followed by spontaneous carbon dioxide release to give free amines. Release of several aliphatic and aromatic primary amines has been demonstrated under mild conditions using visible light.
Preparation and in vitro evaluation of monoquaternary inhibitors of brain cholinesterases
Jun, Daniel,Paar, Martin,Binder, Jiri,Marek, Jan,Pohanka, Miroslav,Stodulka, Petr,Kuca, Kamil
scheme or table, p. 500 - 503 (2010/04/23)
Acetylcholinesterase inhibitors are currently of high interest due to the many reasons. Among them, Alzheimer's disease drugs are of great interest. In this study, eleven monoquaternary pyridinium salts substituted by different groups (electron donors and
