نتایج جستجو برای: nitro

تعداد نتایج: 13086  

Journal: :Trends in chemistry 2021

The preparation of (hetero)arylamines has been significantly advanced by developments in transition metal-catalyzed Csp2–N coupling (e.g., Buchwald–Hartwig, Chan–Lam, and Ullmann couplings). As a complement to these strategies, our group recently demonstrated the reductive arylboronic acids nitro compounds, initially nitro(hetero)arenes more nitromethane, an organophosphorus-catalyzed method op...

The reaction of P-diketones 1 with phenyl hydrazine afforded 5-aryl-3-(1- methyl-5-nitro-2-imidazoly1)-1-phenylpyrazole (2) and 3-aryl-5-(1-methyl-5- nitro-2-imidazoly1) -1-phenylpyrazole (3). The reaction of diketones (1) with urea in the presence of p-toluenesulfonic acid gave 4-(or 6-)aryl-6-(or 4-)(1-methyl- 5-nitro-2-imidazolyl)-1-(lH)pyrimidones (4). The structures of all compounds w...

ژورنال: :مجله گیاهشناسی ایران 1999
حسن ابراهیم زاده وحید نیکنام علی اصغر معصومی

برگچه های 313 نمونه هرباریومی از گون های کرک ساده ایران شامل 240 گونه از 38 بخش، به منظور تشخیص ترکیبات ازت دار الیفاتیک سمی مورد بررسی قرار گرفتند. کاتابولیتهای (فروگوهره ها) ترکیبات ازت دار، 3- نیترو-1-پروپانول و اسید 3- نیترو پروپیونیک برای احشام سمی هستند. وجود این ترکیبات در 42 آرایه، شامل 31 گونه از گون های ایران گزارش می شود.

A. Yahyazadeh, V. Azimi

Copper (II) phthalocyanine and 2,9,16,23 tetrakis nitro copper (II) phthalocyaninehas been synthesized respectively from phthalonitrile and 4-nitro phthalonitrile under solvent-free condition using two different catalystsovernanodimensionalzeolites. 4-Nitro phthalonitrile synthesized from phthalimide in three steps. The newly prepared compounds have been characterized by IR, UV-Vis, 1</sup...

ژورنال: :مجله گیاهشناسی ایران 2000
حسن ابراهیم زاده وحید نیکنام علی اصغر معصومی

برگچه های 111 نمونه هرباریومی از گون های کرک دوشاخه ایران، شامل82 گونه از 13 بخش، به منظور تشخیص ترکیبات ازت دار آلیفاتیک سمی مورد بررسی قرار گرفتند. کاتابولیت های ترکیبات ازت دار، 3-نیترو 1-پروپانول و اسید3- نیتروپروپیونیک، برای احشام سمی هستند. بعلاوه این ترکیبات در طبقه بندی گیاهان نیز حائز اهمیت می باشند. وجود این نیتروتوکسین ها در 4 گونه از 82 گونه مذکور گزارش می شود.

Journal: :journal of sciences islamic republic of iran 0

the reaction of p-diketones 1 with phenyl hydrazine afforded 5-aryl-3-(1- methyl-5-nitro-2-imidazoly1)-1-phenylpyrazole (2) and 3-aryl-5-(1-methyl-5- nitro-2-imidazoly1) -1-phenylpyrazole (3). the reaction of diketones (1) with urea in the presence of p-toluenesulfonic acid gave 4-(or 6-)aryl-6-(or 4-)(1-methyl- 5-nitro-2-imidazolyl)-1-(lh)pyrimidones (4). the structures of all compounds were c...

A Khodadadi A Peimani A Shamsaddini Alireza Foroumadi, B Zihayat M Nourhashemi M. Yazdanian MH Moshafi

A new series of 2-(5-nitro-2-heteroaryl)-1,3,4-thiadiazole derivatives, including nitro furan, nitro thiophene and nitro imidazole, were synthesized and screened in vitro for their inhibitory activity against eight bacterial strains. The results showed that most of the synthesized compounds were active against Gram-positive bacteria, determined by MIC method. Among them, compounds <str...

Journal: :journal of sciences islamic republic of iran 0

reaction of substituted-aniline (8) with ethyl (l-methyl-5-nitroimidazole-2- carbonyl) acetate (9) gave 4-hydroxy-2-(l-methyl-5-nitro-2-imidazolyl)- substituted-quinolines (lo), which were converted to compound 11 with phosphorus oxychloride. substituted-2-(l-methyl-5-nitro-2-imidazo1yl)-4.- methyl-(or phenyl-) quinolines (14) were prepared through the reaction of 2- acetyl-5-nitro-1-methyl-imi...

Journal: :Berichte der deutschen chemischen Gesellschaft 1904

Journal: :Journal of Molecular Liquids 2022

Polycyclic aromatic hydrocarbons (PAH) are ubiquitous persistent organic pollutants forming as byproducts in combustion processes. These compounds can become nitrated the environment even more toxic nitro derivatives. Both PAHs and nitro-PAHs accumulate soils which lead to pollution of vast areas arable land. The best means their elimination from is bioremediation that degradation by soil micro...

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