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取代吡唑-5-酰基杂环衍生物的合成、结构与生物活性

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谭成侠[1] 沈德隆[1] 翁建全[1] 欧晓明[2]

[1]浙江工业大学化学工程与材料学院,杭州310032 [2]国家南方农药创制中心湖南基地生测部,长沙410007

有机化学
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国际标准刊号:ISSN 0253-2786
国内统一刊号:CN 31-1321

摘  要:

为了寻求新的含吡唑双杂环先导化合物.用4-取代-1-甲基-3-乙基-5-吡唑甲酰氯与2-噻唑烷酮、2-噻唑硫酮、2-噁唑烷酮等含氮杂环反应得到了12个含吡唑环的双杂环化合物.化合物结构用IR,^1H NMR,MS和元素分析进行了表征.并用X射线单晶衍射法测定了化合物3-(1-甲基-3-乙基-4-硝基-5-吡唑甲酰基)-噁唑烷-2-酮(3k)的晶体结构.晶体为单斜晶系,P21/n(#14)空间群,α=1.52175(3)nm,b=0.52970(1)nm,c=1.58185(3)nm,β=104.893(4)°,V=1.2323(4)nm^3,Z=4,Dc=1.45g/cm^3,F(000)=560.00,R1=0.064。ωR2=0.193.初步生物活性实验结果表明,在25mg/L浓度下,3-(1-甲基-3-乙基-4-硝基-5-吡唑甲酰基)-噻唑烷-2-酮(3c),3-(1-甲基-3-乙基-4-硝基-5-吡唑甲酰基)-噻唑烷-2-硫酮(3g)对水稻稻瘟病菌(Pyricularia oryzae)的抑制活性达到40%.在500mg/L浓度下,3-(1-甲基-3-乙基-4-溴-5*吡唑甲酰基)-噻唑烷-2-酮(3d),3-(1-甲基-3-乙基-4-溴-5-吡唑甲酰基)-噁唑烷-2-酮(31)对稻黑尾叶蝉(Nephotettix cincticeps)的抑制活性达到53.37%.[著者文摘]

文章出处:

《有机化学》-2005年25卷10期 -1268-1273页

Chinese Journal of Organic Chemistry

栏目信息:

研究简报

分 类 号:

TQ452 TQ453.299

相关文章:

参考文献(12篇) 被引情况(5篇) 耦合文献(29篇)  主题相关

[参考文献]

Synthesis, Structure and Biological Activities of Substituted Pyrazol-5-yl-carbonyl-heterocycles

Tan ChengXia;Shen DeLong;Weng JianQuan;Ou XiaoMing

Abstract:

In order to find new pyrazol-5-yl-carbonyl-heterocycles lead compounds, 12 pyrazolylheterocycles were synthesized from 3-ethyl-1-methyl-4-substitute-5- pyrazolecarboxylic acid chloride and nitrogen heterocyclic compounds such as 2-thiazolidone, 2-thiazolidinone, 2-oxazolidinone, etc. The structures of compounds obtained were confirmed by ^1H NMR, IR, MS spectra and elemental analysis. The crystal structure of 3-(3-ethyl-l-methyl-4-nitro-1H-pyrazol-5-yl-carbonyl)oxazolidin-2-one (3k) was determined by X-ray diffraction analysis. 3k belongs to the monoclinic system with space group P21/n (#14) and cell dimensions: α=1.52175(3) nm, b=0.52970(1) nm, c= 1.58185(3) nm, β= 104.893(4)°, V= 1.2323(4) nm^3, Z=4, Dc=1.45 g/cm^3, F(000)=560.00, R1=0.064, ωR2=0.193. The results of biological tests indicated that, at 25 mg/L, 3-(3-ethyl- 1-methyl-4-nitro- 1H-pyrazole-5-carbonyl)thiazolidin-2-one (3c) and 3-(3-ethyl-1-methyl-4-nitro-1H-pyrazole-5-carbonyl)-2-thiono-thiazolidine (3g) showed inhibitory activities of 40% against Pyricularia oryzae. At 500 mg/L, 3-(3-ethyl- 1-methyl-4-bromo-1H-pyrazol-5-yl-carbonyl)thiazolidin-2-one (3d) and 3-(3-ethyl-l-methyl-4-bromo-1H-pyrazol-5-yl-carbonyl)oxazolidin-2-one (31) showed inhibitory activities of 53.37% against Nephotettix cincticeps.[著者文摘]

Key words:

pyrazole; nitrogen heterocyclic rings; fungicidal activity; insecticidal activity

收稿日期: 2005-02-23
修订日期: 2005-04-21

基金资助:

浙江省教育厅基金(No.20030145)资助项目.

作者简介:

E-mail: tanchengxia@zjut.edu.cn

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