Citation: Rui Qi SONG, Jian Qing ZENG, Bing ZHONG. Effect of Co-solvent on the Palladium Catalyzed Alkoxycarbonylation of Allyl Bromide in Supercritical CO₂[J]. Chinese Chemical Letters, ;2002, 13(10): 933-934. shu

Effect of Co-solvent on the Palladium Catalyzed Alkoxycarbonylation of Allyl Bromide in Supercritical CO₂

1.
Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou 510650;
2.
State Key Laboratory of Coal Chemistry, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001;
3.
School of Chemistry and Chemical Engineering, Zhongshan University, Guangzhou 510275

Received Date: 4 January 2002

The effect of cosolvent on the palladium catalyst which catalyze alkoxycarbonylation of allyl bromide in supercritical CO₂ has been investigated. It was found that a small amount of cosolvent such as ethanol, CH₂Cl₂ and cyclohexane can affect both reaction yields and selectivities largely. Ethanol was the most favorable cosolvent for increasing the total yield of unsaturated esters and the selectivity of 3-butenoic acid ester. Using cosolvent ethanol and cocatalyst FeCl₂ simultaneously can lead to better reaction results.
- Supercritical CO₂,
- cosolvent,
- alkoxycarbonylation,
- palladium,
- cocatalyst,
- FeCl₂
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