17994-56-8Relevant articles and documents
Interrogation of 2,2′-Bipyrimidines as Low-Potential Two-Electron Electrolytes
Griffin, Jeremy D.,Pancoast, Adam R.,Sigman, Matthew S.
supporting information, p. 992 - 1004 (2021/01/25)
As utilization of renewable energy sources continues to expand, the need for new grid energy storage technologies such as redox flow batteries (RFBs) will be vital. Ultimately, the energy density of a RFB will be dependent on the redox potentials of the respective electrolytes, their solubility, and the number of electrons stored per molecule. With prior literature reports demonstrating the propensity of nitrogen-containing heterocycles to undergo multielectron reduction at low potentials, we focused on the development of a novel electrolyte scaffold based upon a 2,2′-bipyrimidine skeleton. This scaffold is capable of storing two electrons per molecule while also exhibiting a low (～-2.0 V vs Fc/Fc+) reduction potential. A library of 24 potential bipyrimidine anolytes were synthesized and systematically evaluated to unveil structure-function relationships through computational evaluation. Through analysis of these relationships, it was unveiled that steric interactions disrupting the planarity of the system in the reduced state could be responsible for higher levels of degradation in certain anolytes. The major decomposition pathway was ultimately determined to be protonation of the dianion by solvent, which could be reversed by electrochemical or chemical oxidation. To validate the hypothesis of strain-induced decomposition, two new electrolytes with minimal steric encumbrance were synthesized, evaluated, and found to indeed exhibit higher stability than their sterically hindered counterparts.
Structure elaboration of isoniazid: synthesis, in silico molecular docking and antimycobacterial activity of isoniazid–pyrimidine conjugates
Kaur, Hardeep,Singh, Lovepreet,Chibale, Kelly,Singh, Kamaljit
, p. 949 - 955 (2019/11/14)
Abstract: Designing small molecule-based new drug candidates through structure modulation of the existing drugs has drawn considerable attention in view of inevitable emergence of resistance. A new series of isoniazid–pyrimidine conjugates were synthesize
(C5H6N4O)(C5H5N4O)3(C5H4N4O)[Bi2Cl11]Cl2 as a simple and efficient catalyst in Biginelli reaction
Zhang, Xiang,Gu, Xiaoyu,Gao, Yuhua,Nie, Shipeng,Lu, Hongfei
, (2017/03/24)
A highly efficient and facile procedure for the one-pot three-component synthesis of 3,4-dihydropyrimidin-2-(1H)ones/thiones from the one-pot condensation of aldehyde, β-dicarbonyl compound and urea/thiourea was developed. The methodology is applicable to
