A new methodology for the synthesis of highly functionalized pyrazol-5-one derivatives: A novel rearrangement

被引：0
|
作者：
Al -Sheikh, Mariam A. [1 ]
机构：
[1] Jeddah Univ, Fac Sci Al Faisaliah, Dept Chem, Jeddah 21493, Saudi Arabia
来源：
TETRAHEDRON LETTERS | 2023年 / 123卷
关键词：
Pyrazolone; Heterocyclic; Diethyl; 2; 5-dihydroxyterephthalat; Diazonium salts; Coupling reaction; BIOLOGICAL EVALUATION; PHARMACOLOGICAL EVALUATION; HETEROCYCLIC SYNTHESIS; INHIBITORS; ANALOGS; DESIGN; ESTERS; SAR;
D O I：
10.1016/j.tetlet.2023.154402
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
The new derivatives of ethyl 1-aryl-5-oxo-4-(2-arylhydrazineylidene)-4,5-dihydro-1H-pyrazole-3-car-boxylates 8a-f were readily prepared, in one step, by coupling diethyl 2,5-dihydroxy-terephthalat (2) with diazonium salts 7a-f. The proposed mechanism of this novel one-step reaction and structure eluci-dation of the products were discussed.@2023 Elsevier Ltd. All rights reserved.
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页数：5
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