2H-Pyran-2-one-3-carbothioamide Derivatives: Synthesis and Reaction with Hydrazine Hydrate

被引:6
|
作者
Makhloufi-Chebli, Malika [1 ]
Hamdi, Maamar [1 ]
Silva, Artur M. S. [2 ,3 ]
Duval, Olivier [4 ]
Helesbeux, Jean-Jacques [4 ]
机构
[1] Univ Sci & Technol Houari Boumediene, Lab Chim Organ Appl, Grp Heterocycles Associe CRAPC, Fac Chim, Bab Ezzouar 16111, Alger, Algeria
[2] Univ Aveiro, Dept Chem, P-3810193 Aveiro, Portugal
[3] Univ Aveiro, QOPNA, P-3810193 Aveiro, Portugal
[4] UFR Univ Sci Pharmaceut & Ingn Sante, Lab SONAS, F-49045 Angers 1, France
关键词
ALPHA-PYRONES; CATALYZED SYNTHESIS; STILLE REACTION; 2-PYRONES; PALLADIUM; 4-HYDROXYCOUMARIN; HYDROGENATION; INHIBITORS;
D O I
10.1002/jhet.2
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
N-Aryl-4-hydroxy-6-methyl-2H-pyran-2-one-3-carbothiamides and N-aryl-4-hydroxycoumarin-3-carbothiamides were synthesized by the reaction of arylisothiocyanates with 4-hydroxy-6-methylpyran-2-one and 4-hydroxycoumarin, respectively. Novel products 3-[bis(arylamino)methylene]-6-methyl-2H,4H-pyran-2,4-diones and N,N'-diaryl-4-hydroxycoumarin-3-carboximidamides have also been obtained in the same reactions. Novel 4-acetoacetyl-3-phenylamino-4,5-dihydro-5H-pyrazo1-5-ones were synthesized from the reaction of N-aryl-4-hydroxy-6-methyl-2H-pyran-2-one-3-carbothiamides with an excess of hydrazine. The structure of all compounds was established by NMR and mass spectra.
引用
收藏
页码:18 / 22
页数:5
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