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2. Catalyst-free one-pot synthesis of isoindolin-1-imine derivatives via three-component reaction

Author

Yijia Chen, Min Lei, Lihong Hu, Sida Shen, and Pham Van Khang

Subjects
Reaction conditions, Ethanol, Component (thermodynamics), Organic Chemistry, Imine, One-pot synthesis, Condensation, Catalysis, lcsh:QD241-441, chemistry.chemical_compound, lcsh:Organic chemistry, chemistry, Organic chemistry, Amine gas treating
Abstract

A novel, one-pot method has been developed for the synthesis of 4-(2-substituented-3-iminoisoindolin-1-ylidene)-1-substitueted-3-methyl-1H-pyrazol-5(4 H)-one derivatives via cascade three-component condensation of 2-cyanobenzaldehyde, amine, and 3-methyl-1H-pyrazol-5(4 H)-one or 1,3-dimethyl-1H-pyrazol-5(4 H)-one. The efficient and convenient reaction conditions provide the corresponding products from various substrates under reflux condition in ethanol with excellent yields (85-95%).

Published
2013
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3. First total synthesis of salvianolic acid C, tournefolic acid A, and tournefolal

Author

Min Lei, Lihong Hu, Sida Shen, and Guiping Zhang

Subjects
lcsh:QD241-441, chemistry.chemical_compound, Salvianolic acid C, Natural product, lcsh:Organic chemistry, Chemistry, Organic Chemistry, Halogenation, Sonogashira coupling, Total synthesis, Organic chemistry, Tournefolal, Benzofuran
Abstract

First total synthesis of the natural product salvianolic acid C, tournefolal and tournefolic acid A has been described. The key benzofuran skeletons are prepared via selective iodination and Sonogashira reaction.

Published
2012

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