Abstract
Condensation of ethyl cyanoacetate with aromatic aldehydes catalyzed by Al2O3–OK solid base in ethanol results ethyl α-cyanocinnamates in 80–99% yields.
Acknowledgments
The project was supported by National Natural Science Foundation of China (29872011 and 29572039), Educational Ministry of China, Educational Department of Hebei Province (990104), and Science and Technology Commission of Hebei Province.