Fast equilibrium of zwitterionic adduct formation in reversible fixation–release system of CO2 by amidines under dry conditions
作者:Naoto Aoyagi、Yoshio Furusho、Yoshihisa Sei、Takeshi Endo
DOI:10.1016/j.tet.2013.04.110
日期:2013.7
investigated the fixation of CO2 by several amidines in solution and found that simple monocyclic amidines fixed CO2 under dry conditions to quantitatively afford the corresponding bicarbonates through hydrolysis of the zwitterionic adducts by adventitious water. In contrast, linear amidines did not form the bicarbonates under the same conditions, while 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) could not
我们研究了几种several在溶液中对CO 2的固定,发现简单的单环am在干燥条件下将CO 2固定,以通过不定水水解两性离子加合物而定量提供相应的碳酸氢盐。相反,直链linear在相同条件下不会形成碳酸氢盐,而1,8-二氮杂双环[5.4.0]十一碳-7-烯(DBU)无法有效捕集CO 2。由单环am固定的CO 2通过在低至60°C的温度下通过氩鼓泡进行定量释放。可以将CO 2固定释放过程重复多次,而不会损失高效率。