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Your search keyword '"Chen, Guo-Feng"' showing total 2 results
Start Over Author "Chen, Guo-Feng" Journal synthetic communications
2 results on '"Chen, Guo-Feng"'

1. A Facile Synthesis of α,α′-bis(Substituted Benzylidene) Cycloalkanones Catalyzed by KF/Al2O3 Under Ultrasound Irradiation.

Author

Li, Ji-Tai, Yang, Wen-Zhi, Chen, Guo-Feng, and Li, Tong-Shuang

Subjects
*SUBSTITUTION reactions, *CHEMICAL reactions, *IRRADIATION, *RADIATION, *BIOSYNTHESIS, *ORGANIC synthesis, *BIOCHEMICAL engineering, *BIOCHEMISTRY, *CONDENSATION, *PHASE transitions, *CHEMISTRY
Abstract

The condensation of the cyclopentanone or cyclohexanone with aromatic aldehydes catalyzed by KF/Al2O3 in MeOH under ultrasound irradiation, result the corresponding 2,5-bis(substituted benzylidene) cyclopentanones or 2,6-bis(substituted benzylidene) cyclohexanones in good yields. [ABSTRACT FROM AUTHOR]

Published
2003
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2. Michael Addition Catalyzed by Potassium Hydroxide Under Ultrasound.

Author

Li, Ji-Tai, Cui, Yong, Chen, Guo-Feng, Cheng, Zhao-Li, and Li, Tong-Shuang

Subjects
*ADDITION reactions, *POTASSIUM compounds, *HYDROXIDES, *IRRADIATION
Abstract

Michael addition of chalcone with active methylene compound such as diethyl malonate, nitromethane and ethyl acetoacetate catalyzed by potassium hydroxide in anhydrous ethanol results Michael adducts in 75–98% yield under ultrasound irradiation in 25–90 min. [ABSTRACT FROM AUTHOR]

Published
2003
Full Text
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