![1-(2-Chlorophenyl)-6-[(2S)-3,3,3-trifluoro-2-methylpropyl]-1,7-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one structure](https://static.chemtradehub.com/structs/794/794568-91-5-0c34.webp "1-(2-Chlorophenyl)-6-[(2S)-3,3,3-trifluoro-2-methylpropyl]-1,7-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one structure")
1-(2-Chlorophenyl)-6-[(2S)-3,3,3-trifluoro-2-methylpropyl]-1,7-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one
CAS Number:
794568-91-5
Molecular Formula:
C15H12ClF3N4O
Two-electron oxidation of water to form hydrogen peroxide catalysed by silicon-porphyrins
Literature Information
Publication Date
2018-03-27
DOI
10.1039/C8SE00102B
Impact Factor
6.367
Authors
Sebastian Nybin Remello, Fazalurahman Kuttassery, Siby Mathew, Arun Thomas, Daisuke Yamamoto, Yu Nabetani, Keito Sano, Hiroshi Tachibana, Haruo Inoue
View Original
Abstract
The second most earth abundant atom incorporated meso-tetrapyridylporphyrinatesilicon(IV) (SiTPyP) as an electrochemical catalyst was newly synthesized. The two axially ligated water molecules on SiTPyP and the four meso-substituted pyridyl nitrogens suffer eight-step protonations and deprotonations. Our detailed pKa study indicated that the two axially ligated water molecules were fully deprotonated to exist as O−–Si–O− under the condition of pH > 2. Under basic conditions, SiTPyP(O−)2 exerted the two-electron oxidation of water to form hydrogen peroxide as the primary product in aqueous acetonitrile, which was initiated through a one-electron oxidation process on the electrode with faradaic yield of 84–92%.
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