引用本文:
伍琳娟, 朱大建, 肖瑟, 雷以柱, 郭园园, 张盼盼, 李光兴. 磷酸钾中和法邻甲酚羧化反应的绿色合成[J]. 应用化学,
2015, 32(6): 647-651.
doi:
10.11944/j.issn.1000-0518.2015.06.140342
Citation: WU Linjuan, ZHU Dajian, XIAO Se, LEI Yizhu, GUO Yuanyuan, ZHANG Panpan, LI Guangxing. Green Process for o-Cersol Carboxylation Using Potassium Phosphate Base[J]. Chinese Journal of Applied Chemistry, 2015, 32(6): 647-651. doi: 10.11944/j.issn.1000-0518.2015.06.140342
Citation: WU Linjuan, ZHU Dajian, XIAO Se, LEI Yizhu, GUO Yuanyuan, ZHANG Panpan, LI Guangxing. Green Process for o-Cersol Carboxylation Using Potassium Phosphate Base[J]. Chinese Journal of Applied Chemistry, 2015, 32(6): 647-651. doi: 10.11944/j.issn.1000-0518.2015.06.140342
磷酸钾中和法邻甲酚羧化反应的绿色合成
English
Green Process for o-Cersol Carboxylation Using Potassium Phosphate Base
Abstract:
A green process of the carboxylation reaction of o-cresol with CO2 using K3PO4 as a base was studied for the synthesis of 2-hydroxy-3-methylbenzoic acid(o-MSA) and related carboxylated products.Various reaction parameters such as temperature,pressure,and the ratio of the base to substrate had been tested. The results show that 95.4% total yield of all carboxylated products in this Koble-Schmitt reaction is obtained using K3PO4 as a base under 3.0 MPa CO2 and 150℃. Additionally,no CO2 is released during the neutralization process following the Koble-Schmitt reaction and the K3PO4 can be recovered and recycled by neutralization of KH2PO4 with KOH. Therefore,this process allows a green fixation of CO2.
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Key words:
- carbon dioxide
- / potassium phosphate
- / hydroxy-methylbenzoic acid
- / green synthesis
- / o-cersol
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