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Wang Z, Wang Z, Yin G. Chiral SalenCr and SalanCr complexes with bulky substituents for asymmetric alternating copolymerization of cyclohexene oxide with carbon dioxide or phthalic anhydride. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Wang Z, Yin G, Wang Z, Yin Y. Synthesis of anionic rare-earth metal salan complexes as catalysts for copolymerization of cyclohexene oxide with cyclic anhydrides. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Tsuchida T, Fukushima J, Tobise M, Hayashi Y, Takizawa H. Low-temperature hydrogen reduction of iron oxide by controlling the water potential using a CaH2 drying agent. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122441] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Kansal D, Abouomar R, Rabnawaz M. Green analogs of polybutadienes from carbon dioxide and epoxy‐based feedstocks. J Appl Polym Sci 2021. [DOI: 10.1002/app.50708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Dhwani Kansal
- Sustainable Materials Group, School of Packaging Michigan State University East Lansing Michigan USA
- Department of Chemistry Michigan State University East Lansing Michigan USA
| | - Ramadan Abouomar
- Sustainable Materials Group, School of Packaging Michigan State University East Lansing Michigan USA
| | - Muhammad Rabnawaz
- Sustainable Materials Group, School of Packaging Michigan State University East Lansing Michigan USA
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Abstract
Abstract
In this work, we present a novel method for the synthesis of ester and amide derivatives containing furan rings (furfural derivatives) under mild synthetic conditions supported by microwave radiation. N-(Furan-2-ylmethyl)furan-2-carboxamide and furan-2-ylmethyl furan-2-carboxylate were produced using 2-furoic acid, furfurylamine, and furfuryl alcohol. The reactions were carried out in a microwave reactor in the presence of effective coupling reagents: DMT/NMM/TsO− or EDC. The reaction time, the solvent, and the amounts of the substrates were optimized. After crystallization or flash chromatography, the final compounds were isolated with good or very good yields. Our method allows for the synthesis of N-blocked amides using N-blocked amino acids (Boc, Cbz, Fmoc) and amine. As well as compounds with a monoamide and ester moiety, products with diamides and diester bonds (N,N-bis(furan-2-ylmethyl)furan-2,5-dicarboxamide, bis(furan-2-ylmethyl) furan-2,5-dicarboxylate, and furan-3,4-diylbis(methylene) bis(furan-2-carboxylate)) were synthesized with moderate yields in the presence of DMT/NMM/TsO– or EDC, using 2,5-furandicarboxylic acid and 3,4-bis(hydroxymethyl)furan as substrates.
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A Potential Alternative to Polystyrene: Ring-opening Terpolymerization of Different Epoxides with Phthalic Anhydride Using Metal-free Dual Catalysts. CHINESE JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1007/s10118-020-2495-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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