The copper‐catalyzed decarboxylation of carboxylic aromaticacids has been advantageously achieved by using aliphatic amines like tetramethylethylenediamine (TMEDA) or hexamethylenetetraamine (HMTA) as ligands instead of the aromatic heterocyclic amines (quinoline, phenanthroline) used until now. The improvement is significant since the reaction can be performed at a lower temperature (ca. 50 °C less)
申请人:KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY 한국생산기술연구원(319999029382) BRN ▼119-82-01008
公开号:KR20200043648A
公开(公告)日:2020-04-28
본 발명은 유기성 염기와 2-퓨로익산(2-Furoic acid)의 산-염기 반응으로 이온성 액체를 생성하는 단계; 및 상기 이온성 액체, 촉매 및 이산화탄소를 반응시켜 2,5-퓨란디카르복시산을 제조하는 단계;를 포함하는 2,5-퓨란디카르복시산 제조방법에 관한 것이다. 이에 의하여, 단일 용기 내에서 간단한 공정으로 직접 반응하여 높은 수율로 2,5-퓨란디카르복시산을 제조할 수 있고, 친환경적이고 대량으로 2,5-퓨란디카르복시산을 제조할 수 있으며 원료 보관 및 투입이 용이한 효과가 있다.
[EN] CARBONATE-PROMOTED CARBOXYLATION AT HIGH RATES<br/>[FR] CARBOXYLATION ACTIVÉE PAR DU CARBONATE À DES TAUX ÉLEVÉS
申请人:UNIV LELAND STANFORD JUNIOR
公开号:WO2021158890A1
公开(公告)日:2021-08-12
A method for synthesizing furan-2, 5-dicarboxylate (FDCA2-) is provided. Furan-2-carboxylate is provided with an inorganic base in the form of an inorganic base salt, wherein the furan-2-carboxylate and the inorganic base salt form a mixture. A CO2 gas is provided to the mixture. The mixture is heated to a temperature to at least partially melt the mixture, wherein the heating of the mixture causes the synthesizing of a MxFDCA solid, wherein MxFDCA denotes a salt comprising furan-2,5-dicarboxylate (FDCA2-) and cation M+ and/or M2+, where x is a number between 1 and 2, inclusive. The mixture containing furan-2-carboxylate is mechanically agitated, wherein the mechanically agitating breaks up the MxFDCA solid.