[EN] A PROCESS FOR THE PREPARATION OF FATTY CYCLIC CARBONATES BY OXIDATIVE CARBOXYLATION<br/>[FR] PROCÉDÉ POUR LA PRÉPARATION DE CARBONATES CYCLIQUES GRAS PAR CARBOXYLATION OXYDATIVE
申请人:COUNCIL SCIENT IND RES
公开号:WO2016006003A1
公开(公告)日:2016-01-14
The present invention relates to the development of novel one-pot process for the preparation of fatty cyclic carbonates from unsaturated fatty derivatives using t-butyl hydroperoxide (TBHP; 70 wt.% in water) and carbon dioxide (CO2) through oxidative carboxylation. This process uses recyclable metal salen complexes, in particular, Mn (III) salen complexes, as catalyst and the reactions are performed under ambient conditions (26 ± 2 oC and 1 bar). Varied forms of fatty compounds such as fatty alkyl esters, fatty acids and fatty glyceryl esters including vegetable oils were converted into fatty cyclic carbonates with moderate to excellent yields. Ethyl linoleate was converted into fatty cyclic carbonates at 88% conversion with 86% selectivity in 4 h. This process efficiently uses abundantly available CO2 as one of the raw materials for the preparation bio-based oleochemicals that can serve as alternate for presently used petroleum-based products.
本发明涉及一种新型一锅法制备脂肪环碳酸酯的方法,使用叔丁基过氧化氢(TBHP;70%重量浓度在水中)和二氧化碳(CO2)通过氧化羧化作用从不饱和脂肪衍生物中制备脂肪环碳酸酯。该过程使用可回收的金属Salen配合物,特别是锰(III)Salen配合物,作为催化剂,并在环境条件下(26±2摄氏度和1大气压)进行反应。各种形式的脂肪化合物,如脂肪烷基酯、脂肪酸和脂肪甘油酯,包括植物油,均可转化为脂肪环碳酸酯,产率从中等到优良。乙基亚油酸酯在4小时内以88%的转化率和86%的选择性转化为脂肪环碳酸酯。该过程高效地利用了丰富的二氧化碳作为制备基于生物的油化学品的原材料之一,可作为目前使用的石油基产品的替代品。