Synthesis and structure of novel 3,4-annelated coumarin derivatives

Synthesis and structure of novel 3,4-annelated coumarin derivatives

Condensation of 4‐chloro‐2‐oxo‐2H‐chromene‐3‐carbonitrile (1) with heteroarylamines 2a‐d in acetonitrile containing a catalytic amount of triethylamine followed by spontaneous intramolecular cyclization gave the novel coumarin derivatives 3a‐d, respectively. These compounds underwent acid hydrolysis...

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Bibliographic Details
Published in:Journal of heterocyclic chemistry Vol. 45; no. 1; pp. 295 - 297
Main Authors: Dekić, Milan S., Dekić, Biljana R., Dekić, Vidoslav S., Deki, Stojadin V.
Format: Journal Article
Language:English
Published: Hoboken Wiley-Blackwell 01-01-2008
Wiley‐Blackwell
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Summary:Condensation of 4‐chloro‐2‐oxo‐2H‐chromene‐3‐carbonitrile (1) with heteroarylamines 2a‐d in acetonitrile containing a catalytic amount of triethylamine followed by spontaneous intramolecular cyclization gave the novel coumarin derivatives 3a‐d, respectively. These compounds underwent acid hydrolysis giving the corresponding oxoderivatives 4a‐d. The structural assignments of the synthesized compounds were based on elemental, IR, 1H and 13C NMR analyses.
Bibliography:ark:/67375/WNG-2ZSS76VH-1
ArticleID:JHET5570450137
Ministry of Science and Environmental Protection of Serbia
istex:33B1F8E94353ED004B0A7FFAE62C8F2B2B8F7F41
ISSN:0022-152X
1943-5193
DOI:10.1002/jhet.5570450137