On the Reaction of 3-Cyanochromones with Phenyl- and Methylhydrazines: Structural Revision and a Simple Synthesis of Chromeno{[}4,3-c]pyrazol-4-Ones / Sosnovskikh Vyacheslav Ya.,Moshkin Vladimir S.,Kodess Mikhail I. // JOURNAL OF HETEROCYCLIC CHEMISTRY. - 2010. - V. 47, l. 3. - P. 629-633.

ISSN/EISSN:

0022-152X / нет данных

Type:

Article

Abstract:

Reactions of 3-cyanochromones with phenylhydrazine gave the corresponding 5-amino-4-salicyloyl-1-phenylpyrazoles, 2-aminochromone-3-carbaldehyde N-phenylhydrazones, and 1-phenylchromeno{[}4,3-c]pyrazol-4(1H)-one, depending on the reaction conditions. With methylhydrazine, 3-(2-hydroxyaryl)-1-methylpyrazole-4-carbonitriles and 2-methylchromeno{[}4,3-c]pyrazol-4(2H)-ones were obtained in moderate to high yields.

Author keywords:

ANTIANAPHYLACTIC AGENTS; 3-SUBSTITUTED CHROMONES; HETEROCYCLIC-SYSTEMS; VILSMEIER REAGENTS; ACID; RING; 3-CYANO-4-BENZOPYRONES; BENZOPYRANS; COUMARINS

DOI:

10.1002/jhet.370

Web of Science ID:

ISI:000278638500023

Соавторы в МНС:

Другие поля

Поле	Значение
Month	MAY
Publisher	WILEY-BLACKWELL
Address	COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
Language	English
Keywords-Plus	ANTIANAPHYLACTIC AGENTS; 3-SUBSTITUTED CHROMONES; HETEROCYCLIC-SYSTEMS; VILSMEIER REAGENTS; ACID; RING; 3-CYANO-4-BENZOPYRONES; BENZOPYRANS; COUMARINS
Research-Areas	Chemistry
Web-of-Science-Categories	Chemistry, Organic
Author-Email	vyacheslav.sosnovskikh@usu.ru
ResearcherID-Numbers	Moshkin, Vladimir/E-6623-2017
Funding-Acknowledgement	RFBR {[}06-03-32388]
Funding-Text	This work was financially supported by the RFBR (Grant 06-03-32388).
Number-of-Cited-References	26
Usage-Count-Last-180-days	2
Usage-Count-Since-2013	6
Journal-ISO	J. Heterocycl. Chem.
Doc-Delivery-Number	609EP