Synthesis of 4-aryl-3-(2-chromonyl)-2-pyrazolines by the 1,3-dipolar cycloaddition of 2-styrylchromones with diazomethane

被引:38
|
作者
Pinto, DCGA
Silva, AMS [1 ]
Almeida, LMPM
Cavaleiro, JAS
Levai, A
Patonay, T
机构
[1] Univ Aveiro, Dept Chem, P-3810 Aveiro, Portugal
[2] Lajos Kossuth Univ, Dept Organ Chem, H-4010 Debrecen, Hungary
关键词
D O I
10.1002/jhet.5570350140
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The first reported 1,3-dipolar cycloaddition of 2-styrylchromones with diazomethane afforded 4-aryl-3-(2-chromonyl)-2-pyrazolines. However, 3-aryl-4-(2-chromonyl)-1-pyrazolines have been also found as minor products of this reaction. These two series of pyrazolines have been fully characterized.
引用
收藏
页码:217 / 224
页数:8
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