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Citation: LI Yi-Qun, ZHOU Mei-Yun, XU Xin-Ming, OU Yi-Qun. Carboxymethyl Cellulose Supported Triethylenetetramine as a Catalyst for Knoevenagel Condensation[J]. Chinese Journal of Applied Chemistry, ;2003, 20(1): 89-91. shu

Carboxymethyl Cellulose Supported Triethylenetetramine as a Catalyst for Knoevenagel Condensation

LI Yi-Qun ^a,c,, ,
ZHOU Mei-Yun ^a ,
XU Xin-Ming ^a ,
OU Yi-Qun ^b

1.
a Department of Chemistry, Ji'nan University, Guangzhou 510632;
2.
b Department of Food Science and Engineering, Ji'nan University, Guangzhou 510632;
3.
c Laboratory of Cellulose and Lignocellulosics Chemistry, Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou

Corresponding author: LI Yi-Qun,
Received Date: 29 May 2002
Available Online: 19 August 2002
Fund Project: 中国科学院广州化学研究所纤维素化学重点实验室访问学者基金资助(LCLC2002137) (LCLC2002137)

The Knoevenagel reaction of aromatic aldehydes with malononitrile and ethyl cyanoacetate proceeds smoothly in the presence of carboxymethyl cellulose supported triethylenetetramine as catalyst in the 95% ethanol to afford the desired E-isomers of the corresponding alkenes in yield of 74%~96% and good purity. The results confirm that the catalyst can offer definite advantages of good activity, easy separation, mild reaction condition and high yields. Moreover, it can be reused for not less than 5 runs.
- carboxylmethyl cellulose supported triethylenetetramine,
- catalyst,
- Knoevenagel condensation,
- alkene
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