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Paul S, Joy BP, Sasikala G, Raghuthaman AG, Gudimetla VB. Copper‐NHC Based Ullmann Catalysis in Water for Selective N‐Arylation of 3‐Aminophenols. ChemistrySelect 2020. [DOI: 10.1002/slct.202003455] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sudeep Paul
- Department of Chemistry School of Basic and Applied Sciences Central University of Tamil Nadu Thiruvarur 610 005 Tamil Nadu India
| | - Bony P. Joy
- Department of Chemistry School of Basic and Applied Sciences Central University of Tamil Nadu Thiruvarur 610 005 Tamil Nadu India
| | - Geethu Sasikala
- Department of Chemistry School of Basic and Applied Sciences Central University of Tamil Nadu Thiruvarur 610 005 Tamil Nadu India
| | - Advaya G. Raghuthaman
- Department of Chemistry School of Basic and Applied Sciences Central University of Tamil Nadu Thiruvarur 610 005 Tamil Nadu India
| | - Vittal B. Gudimetla
- Department of Chemistry School of Basic and Applied Sciences Central University of Tamil Nadu Thiruvarur 610 005 Tamil Nadu India
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You W, Hugar KM, Selhorst RC, Treichel M, Peltier CR, Noonan KJT, Coates GW. Degradation of Organic Cations under Alkaline Conditions. J Org Chem 2020; 86:254-263. [PMID: 33236908 DOI: 10.1021/acs.joc.0c02051] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Understanding the degradation mechanisms of organic cations under basic conditions is extremely important for the development of durable alkaline energy conversion devices. Cations are key functional groups in alkaline anion exchange membranes (AAEMs), and AAEMs are critical components to conduct hydroxide anions in alkaline fuel cells. Previously, we have established a standard protocol to evaluate cation alkaline stability within KOH/CD3OH solution at 80 °C. Herein, we are using the protocol to compare 26 model compounds, including benzylammonium, tetraalkylammonium, spirocyclicammonium, imidazolium, benzimidazolium, triazolium, pyridinium, guanidinium, and phosphonium cations. The goal is not only to evaluate their degradation rate, but also to identify their degradation pathways and lead to the advancement of cations with improved alkaline stabilities.
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Affiliation(s)
- Wei You
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, United States.,Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Kristina M Hugar
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, United States
| | - Ryan C Selhorst
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213-2617, United States
| | - Megan Treichel
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213-2617, United States
| | - Cheyenne R Peltier
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, United States
| | - Kevin J T Noonan
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213-2617, United States
| | - Geoffrey W Coates
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, United States
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