Reactivity of pyrazolines-synthesis and characterization of some new 1,3-diacetyl-4-aryl-2-pyrazolines

被引：0
|
作者：
Rao, KS [1 ]
Subbaraju, GV [1 ]
机构：
[1] SRI VENKATESWARA UNIV,DEPT CHEM,TIRUPATI 517502,ANDHRA PRADESH,INDIA
来源：
INDIAN JOURNAL OF HETEROCYCLIC CHEMISTRY | 1996年 / 5卷 / 03期
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D O I：
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中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
Acetylation of 3-acetyl-4-aryl-2-pyrazolines (2) under the usual conditions of refluxing with acetic acid led to the decomposition of pyrazolines. However, acetylation with Ac2O/Py afforded the desired 1,3-diacetyl-4-aryl-2-pyrazolines (3) in 39-73% yield. 2a formed an adduct (4) with benzalacetone. Structures of the products have been established through interpretation of high resolution NMR, mass spectroscopic data.
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页码：173 / 176
页数：4
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