Study on the synthesis of novel 5-substituted 2-[2-(pyridyl)ethenyl]-1,3,4-oxadiazoles and their acid-base interactions

Kudelko Agnieszka; Jasiak Karolina; Ejsmont Krzysztof

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Study on the synthesis of novel 5-substituted 2-[2-(pyridyl)ethenyl]-1,3,4-oxadiazoles and their acid-base interactions

机译：新型5-取代的2- [2-（吡啶基）乙烯基] -1,3,4-恶二唑的合成及其酸碱相互作用的研究

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摘要

A series of novel 5-substituted 2-[2-(pyridyl)ethenyl]-1,3,4-oxadiazoles were efficiently synthesized by cyclocondensation of the appropriate 3-(pyridyl)acrylohydrazides with triethyl orthoesters in the presence of glacial acetic acid. The products were identified by means of spectroscopic methods and their pK (A) ionization constants were determined. The influence of substituents on the basicity of the pyridine system has been discussed.

机译：在冰醋酸存在下，通过适当的3-（吡啶基）丙烯酰肼与三乙基原酸酯的环缩合反应，可以有效地合成一系列新型的5-取代的2- [2-（吡啶基）乙烯基] -1,3,4-恶二唑。通过光谱方法鉴定产物，并测定其pK（A）电离常数。讨论了取代基对吡啶体系碱性的影响。

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来源
《Monatshefte fur Chemie》 |2015年第2期|共9页
作者
Kudelko Agnieszka; Jasiak Karolina; Ejsmont Krzysztof;
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原文格式 PDF
正文语种 eng
中图分类化学;
关键词
Heterocycles; Basicity; Cyclizations; 1; 3; 4-Oxadiazoles; 3-(Pyridyl)acrylohydrazides; pK(A) Ionization constants;

机译：杂环;便利性;环化;1;3;4-恶二唑;3-（吡啶基）丙烯酰肼;pK（A）电离常数;

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1. Study on the synthesis of novel 5-substituted 2-[2-(pyridyl)ethenyl]-1,3,4-oxadiazoles and their acid-base interactions [J] . Kudelko Agnieszka, Jasiak Karolina, Ejsmont Krzysztof Monatshefte fur Chemie . 2015,第2期

机译：新型5-取代的2- [2-（吡啶基）乙烯基] -1,3,4-恶二唑的合成及其酸碱相互作用的研究
2. Synthesis, Crystal Structure and Characterizations of Zn (II) Complex with pmtpo and NCS-(Pmtpo=2-(2-pyridylmethylthio)-5-(4-pyridyl)-1,3,4-oxadiazole) [J] . Ye E, Wu BL, Niu YY, Synthesis and reactivity in inorganic, metal-organic, and nano-metal chemistry . 2008,第9期

机译：Zn（II）与Pmtpo和NCS-（Pmtpo = 2-（2-吡啶基甲硫基）-5-（4-吡啶基）-1,3,4-恶二唑）的配合物的合成，晶体结构和表征
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机译：3,3'-双-（5-三氟甲基-1,2,4-恶二唑）和5,5'-双-（2-三氟甲基-1,3,4-恶二唑）的合成与研究
5. Luminescent transition metal complexes of 2-(2'-pyridyl)benzimidazolyl and 2-(2'-pyridyl)indolyl based ligands and their applications. [D] . McCormick, Theresa Michelle. 2008

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机译：新型5-取代的2- 2-（吡啶基）乙烯基 -1,3,4-恶二唑的合成及其酸碱相互作用的研究

Study on the synthesis of novel 5-substituted 2-[2-(pyridyl)ethenyl]-1,3,4-oxadiazoles and their acid-base interactions

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