Synthesis and Insecticidal Activity of 2-[4-{4,5-di hydro-5- (substituted phenyl)-1H -Pyrazol-3-yl}phenoxy] Acetic Acid Hydrazides and Related Compounds

Nikhil Singh; Rajvir Singh; MS Malik

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Synthesis and Insecticidal Activity of 2-[4-{4,5-di hydro-5- (substituted phenyl)-1H -Pyrazol-3-yl}phenoxy] Acetic Acid Hydrazides and Related Compounds

机译：2- [4- {4,5-二氢-5-（取代的苯基）-1H-吡唑-3-基}苯氧基]乙酸酰肼的合成及杀虫活性

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Condensation of 4-hydroxyacetophenone (1) with substituted aldehydes (2-8) gave various 1 -(4-hydroxy phenyl)-3-(substituted phenyl) prop-2-en-1 -ones (9-15). Alkylation of chalcones(9-13) with ethyl chloroacetate in presence of anhydrous potassium carbonate gave the corresponding ethyl 2-[4-(substituted cinnamoyl) phenoxy] acetates (16-20), respectively. Hydrolysis of various esters (16-20) gave 4-(substituted cinnamoyl) phenoxy acetic acids (21-25). Compounds 16-20 were also refluxed with hydrazine hydrate to afford 2-[4-{4,5-dihydro-5-(substituted phenyl)-{H- pyrazol-3-yl}phenoxy] acetic acid hydrazide (26-30). These compounds were characterized and evaluated for their insecticidal activity against Helicoverpa armigera and some of them exhibited significant insecticidal activity.

机译：4-羟基苯乙酮（1）与取代的醛（2-8）的缩合得到各种1-（4-羟基苯基）-3-（取代的苯基）丙-2-烯-1-酮（9-15）。在无水碳酸钾存在下，将查尔酮（9-13）与氯乙酸乙酯烷基化，分别得到相应的2- [4-（取代的肉桂酰基）苯氧基]乙酸乙酯（16-20）。各种酯（16-20）的水解得到4-（取代的肉桂酰基）苯氧基乙酸（21-25）。化合物16-20也与水合肼回流，得到2- [4- {4,5-二氢-5-（取代的苯基）-{H-吡唑-3-基}苯氧基]乙酸酰肼（26-30）。对这些化合物进行了表征并评估了其对棉铃虫的杀虫活性，其中一些化合物表现出显着的杀虫活性。

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《Pesticide Research Journal》 |2008年第2期|共6页
作者
Nikhil Singh; Rajvir Singh; MS Malik;
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正文语种 eng
中图分类化学工业;
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Synthesis; hydrazides; insecticidal activity; Helicoverpa armigera;

机译：合成;酰肼;杀虫活性;棉铃虫;

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1. Synthesis and Insecticidal Activity of 2-[4-{4,5-di hydro-5- (substituted phenyl)-1H -Pyrazol-3-yl}phenoxy] Acetic Acid Hydrazides and Related Compounds [J] . Nikhil Singh, Rajvir Singh, MS Malik Pesticide Research Journal . 2008,第2期

机译：2- [4- {4,5-二氢-5-（取代的苯基）-1H-吡唑-3-基}苯氧基]乙酸酰肼的合成及杀虫活性
2. Synthesis and Hypolipidemic Activity of Novel 2- (4-(2-Amino-6-(4-Substituted Phenyl) Pyrimidin-4- yl)-2-Substituted Phenoxy) Acetic Acid Derivatives [J] . Santosh N. Mokale, Maheshwari T. Shete, Sameer I. Shaikh, Chemical biology and drug design . 2012,第4期

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Synthesis and Insecticidal Activity of 2-[4-{4,5-di hydro-5- (substituted phenyl)-1H -Pyrazol-3-yl}phenoxy] Acetic Acid Hydrazides and Related Compounds

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