Synthesis of some new 3-(6-arylpyridin-2-yl)- and 8-(6-arylpyridin-2-yl)coumarins

Authors
Brahmbhatt, DI Pandya, UR
Citation
Di. Brahmbhatt et Ur. Pandya, Synthesis of some new 3-(6-arylpyridin-2-yl)- and 8-(6-arylpyridin-2-yl)coumarins, I J CHEM B, 40(5), 2001, pp. 419-421
Citations number
8
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
INDIAN JOURNAL OF CHEMISTRY SECTION B-ORGANIC CHEMISTRY INCLUDING MEDICINAL CHEMISTRY
ISSN journal
03764699 → ACNP
Volume
40
Issue
5
Year of publication
2001
Pages
419 - 421
Database
ISI
SICI code
0376-4699(200105)40:5<419:SOSN3A>2.0.ZU;2-R
Abstract
3-Coumarinoyl methyl pyridinium bromide 1 and 4-methyl-7-methoxy-8-coumarin oyl methyl pyridinium bromide 4 on reaction with Mannich bases 2a-f in the presence of ammonium acetate in refluxing acetic acid afford 3-(6-arylpyrid in-2-yl) coumarins 3a-f and 8-(6-arylpyridin-2-yl) coumarins 5a-f respectiv ely in moderate to good yields.