Synthesis of N1-substituted coumarino[4,3-c] pyrazoles

被引：8
|
作者：
Cacic, M
Trkovnik, M
Has-Schön, E
机构：
[1] JJ Strossmayer Univ, Fac Food Technol, Dept Chem, Osijek 31000, Croatia
[2] OVA DD, Res Inst, Zagreb 10000, Croatia
[3] JJ Strossmayer Univ, Fac Educ, Osijek 31000, Croatia
来源：
JOURNAL OF HETEROCYCLIC CHEMISTRY | 2003年 / 40卷 / 05期
关键词：
D O I：
10.1002/jhet.5570400513
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
3-Acyl-4-hydroxy-2-oxo-2H-chromen derivatives 1a-d were condensed with (7-hydroxy-2-oxo-2Hchromen-4-yl)-acetic acid hydrazide 2, (4-methyl-2-oxo-2H-chromen-7-yloxy)-acetic acid hydrazide 3, and (7-hydrazinocarbonylmethoxy-2-oxo-2H-chromen-4-yl)-acetic acid hydrazide 4, to give corresponding 3-alkyl-1-[2-(7-hydroxy-2-oxo-2H-chromeno-4-yl)-acetyl]-1H-chromeno[4,3-c]pyrazole-4-one 5a-d, 3-alkyl-1-[2-(4-methyl-2-oxo-2H-chromeno-7-yloxy)-acetyl]-1H-chromeno[4,3-clpyrazole-4-one 6a-d, and 1-{4-[(3-alkyl-1H-chromeno[4,3-c]pyrazole-4-one-1-yl)-carbonylmethyl]-2-oxo-2H-chromen-7yloxy-acetyl}-3-alkyl-1H-chromeno[4,3-c]pyrazole-4-one 7a-d.
引用
收藏
页码：833 / 836
页数：4
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