Reaction of Oxiranes with Ethyl 3-Phenyl-1H-pyrazole-5-carboxylate

被引：0
|
作者：
Kharaneko, A. O. [1 ]
Pekhtereva, T. M. [1 ]
Kharaneko, O., I [1 ]
机构：
[1] Litvinenko Inst Phys Organ & Coal Chem, UA-83114 Donetsk, Ukraine
来源：
RUSSIAN JOURNAL OF ORGANIC CHEMISTRY | 2022年 / 58卷 / 04期
关键词：
azole tautomerism; oxirane; 1H-pyrazole-5-carboxylate; 4H-pyrazolo[5; 1-c][1; 4]oxazin-4-one;
D O I：
10.1134/S1070428022040054
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
Ethyl 3-phenyl-1H-pyrazole-5-carboxylate reacted with oxiranes to give mixtures of 2-phenyl-6-R-6,7-dihydro-4H-pyrazolo[5,1-c][1,4]oxazin-4-ones and ethyl 1-(2-hydroxy-3-R-propyl)-5-phenyl-1H-pyrazole-3-carboxylates. A probable mechanism for the formation of fused oxazine ring has been proposed.
引用
收藏
页码：499 / 503
页数：5
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