4-hydroxy-2- quinolones 199*. use of N,N'-dicyclohexylcarbodiimide in the synthesis of ethyl 4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxylates

Autor: N. Yu. Golik, O. V. Bevz, O. V. Gorokhova, Igor V. Ukrainets
Rok vydání: 2011
Předmět:
Zdroj: Chemistry of Heterocyclic Compounds. 47:833-837
ISSN: 1573-8353
0009-3122
Popis: A novel method has been developed for the synthesis of 4-hydroxy-2-oxo-1,2-dihydroquinoline3-carboxylic acids esters based on the use of monoethyl malonate as an acylating agent in the presence of N,N'-dicyclohexylcarbodiimide and characterized by high yields and purity for the final products. Practical recommendations are given for the removal of specific admixtures.
Databáze: OpenAIRE