The condensation of active methylene reagents with salicylaldehyde: Novel synthesis of chromene, azaanthracene, pyrano[3,4-c]chromene and chromeno[3,4-c]pyridine derivatives
Date
2004
Journal Title
Journal ISSN
Volume Title
Type
Article
Publisher
HETERO CORPORATION
Series Info
JOURNAL OF HETEROCYCLIC CHEMISTRY;Volume: 41 Issue: 5 Pages: 655-658
Scientific Journal Rankings
Abstract
On heating of the cyanoacetic acid cyclopentylidene hydrazide I with salicylaldehyde in the presence of bases the azaanthracene derivative 6 was formed. Also, reaction of 3 with malononitrile and ketones 10a,b afforded the pyrano[3,4-c]chromene 9 and chromeno[3,4-c]pyridine 11 respectively. A mechanism for these reactions is proposed
Description
Accession Number: WOS:000224694800002
Keywords
pyridine derivatives, chemistry, organic chemistry, chromeno[3,4-c], pyrano, azaanthracene
Citation
Cited References in Web of Science Core Collection: 8