TY - JOUR
T1 - ZnBr2/DMF as simple and highly active Lewis acid-base catalysts for the cycloaddition of CO2 to propylene oxide
AU - Zhong, Shifa
AU - Liang, Lin
AU - Liu, Bo
AU - Sun, Jianmin
PY - 2014/6
Y1 - 2014/6
N2 - It is a great challenge for developing effective and simple catalysts for the cycloaddition of CO2 to epoxides to form cyclic carbonates. In this report, the simple ZnBr2/DMF catalysts were found highly effective to this transformation and a high TOF of 1170 h-1 and 100% selectivity to propylene carbonate were obtained at 150 °C and 3 MPa of CO2. Specially, the catalysts possessed merits of cheapness, effectivity and facile availability, which were very attractive from the viewpoint of industrial applications. Moreover, the effects of various reaction factors, including different Lewis acids and bases used, temperature, CO 2 pressure, reaction time and the amount of DMF, were also discussed in detail. Besides, a possible catalytic mechanism for the cycloaddition of CO2 to propylene oxide was proposed.
AB - It is a great challenge for developing effective and simple catalysts for the cycloaddition of CO2 to epoxides to form cyclic carbonates. In this report, the simple ZnBr2/DMF catalysts were found highly effective to this transformation and a high TOF of 1170 h-1 and 100% selectivity to propylene carbonate were obtained at 150 °C and 3 MPa of CO2. Specially, the catalysts possessed merits of cheapness, effectivity and facile availability, which were very attractive from the viewpoint of industrial applications. Moreover, the effects of various reaction factors, including different Lewis acids and bases used, temperature, CO 2 pressure, reaction time and the amount of DMF, were also discussed in detail. Besides, a possible catalytic mechanism for the cycloaddition of CO2 to propylene oxide was proposed.
KW - Acid-base catalysts
KW - DMF
KW - Propylene carbonate
UR - https://www.scopus.com/pages/publications/84900491521
U2 - 10.1016/j.jcou.2014.02.004
DO - 10.1016/j.jcou.2014.02.004
M3 - 文章
AN - SCOPUS:84900491521
SN - 2212-9820
VL - 6
SP - 75
EP - 79
JO - Journal of CO2 Utilization
JF - Journal of CO2 Utilization
ER -