The research included the preparation of two Schiff bases MA1,2 starting from1-methyl-pyrazole-4-carbaldehyde with 4-chloroaniline or 4-amino antipyrine in equal moles presence glacial acetic acid. Then xazepane rings MA (3-6) were prepared from phthalic anhydride maleic anhydride. chemical formulas confirmed using FTIR, 1HNMR, and 13CNMR spectroscopy. toxicity activity compound MA2 against bre...

Through this study, a group of heterocyclic compounds represented by five-membered ring, seven rings, and tetracyclic Oxazepine, β-lactam, Thiazolidines, Imidazolidines, were prepared depending on the intermediate compound, Schiff bases, that from reaction 2-Aminobenzimidazol with 4-Bromobenzaldehyde to form (azomethine-CH=N) above formed pathway bond. All new derivatives created Fourier Transf...

ethylammonium propionate with high polarity and ionic conductivity was synthesized andcharacterized with 1hnmr and ir. this ionic liquid which is prepared from readily available startingmaterial in high yield shows reasonably high at viscosity and heat stability up to 150 °c. this ionicliquid is able to dissolve most of organic solvents due to the hydrogen interaction between ionicliquid and th...

رآکتور مینیاتوری چشمه نوترونی یک تحقیقاتی از نوع مخزن-استخری است که در آن اورانیم با غنای بالا به‌عنوان سوخت، آب سبک خنک‌کننده و برلیوم بازتابنده استفاده ‌شده است. هنگام بهره­برداری دمای سیال افزایش می­یابد باعث ایجاد فیدبک منفی می‌شود. بر اثر تزریق راکتیویته عین حال یکی مزایای این خصلت ایمنی ذاتی است، اضافی دسترس کاهش‌یافته زمان عملکرد کاهش می‌یابد؛ بنابراین محدودیت­های اصلی MNSR کوتاه (حدود 5...

In analogy with the reaction of phenols very strong super acids, these compounds can be protonated by weaker acid trifluoroacetic (TFA) and trifluoromethanesulphonic (TFS) also giving rise to formation OH and/or ring products, which identified unambiguously means 1HNMR spectroscopy. The same reactions are possible deuterated acids TFA-d TFS-d. However, from reactions, additional information on ...

VEGFR-2 is a critical target for the treatment of solid tumors. This work represents synthetic approaches to new class fenamate-based derivatives with essential pharmacophoric properties comparable inhibitors. The reaction tolfenamic acid hydrazide substituted phenacyl bromide, and phenylisothiocynate produced novel (TA) (compounds 4 5). molecules were validated using spectroscopic techniques s...

Displacement reaction of 2,3-dichloroquinoxaline with secondary amines in boiling ethanol afforded it`s mono aminoquinoxaline derivatives. Further reaction of the latter compounds with sodium azide in warm dimethylsulfoxide achieved a group of 4-amino tetrazolo[1,5-a]quinoxaline derivatives. 1HNMR spectra of these compounds are discussed.

some n¬-acyl-n'-aryl thiourea derivatives 4(a-f) have been prepared by the reaction of acyl halides ammonium thiocyanate and aryl amines. the structures of synthesized compounds have been characterized by ir, 1hnmr spectral studies. the synthesized compounds 5(a-f) have been screened for antibacterial activity. the effect of the structure of the investigated compounds on the antibacterial ...