abdelraheem_mohamed

عبدالرحيم محمد احمد محمود

مدرس -

كلية العلوم

العنوان: جامعة سوهاج - كلية العلوم - قسم الكيمياء

5

إعجاب
7 1 5 8 4 5 252 396
107

أضيف حديثا
  • المقررات الدراسية 7
  • ملحقات المقررات الدراسية 1
  • واجبات المقررات الدراسية 5
  • المنشورات و المؤلفات 8
  • ساعات مكتبية 4
  • الاعلانات 5
  • عدد الملفات المرفوعه 1
  • كل التنزيلات 3

المنشورات و المؤلفات التي تحتوي علي الكلمة المفتاحية: phase transfer catalysis

Synthesis of Novel Fused Heterocycles Based on 6-Amino-4-phenyl-2-thioxo-1,2-dihydropyridine-3,5-dicarbonitrile

2018-10-31 16:38:24 الكلمات المفتاحية thienopyridines, Pyridines, phase transfer catalysis,
Synthesis of Novel Fused Heterocycles Based on 6-Amino-4-phenyl-2-thioxo-1,2-dihydropyridine-3,5-dicarbonitrile
Under phase transfer catalysis conditions, 6‐amino‐4‐phenyl‐2‐thioxo‐1,2‐dihydropyridine‐3,5‐dicarbonitrile (1) was allowed to react with halo compounds, acrylonitrile, chloroacetyl chloride, ethyl cyanoacetate, formamide, triethylorthoformate, or formic acid to give new derivatives of fused pyridines 2–22, respectively. Acetylation of compound 1 using acetic anhydride afforded product 23, which in turn underwent intramolecular cyclization in pyridine to give the corresponding pyrido[2,3‐_d_]pyrimidine 24. إقراء المزيد

Synthesis of Some New F used P yridines and Prediction their Biological Activity via PASS INET

2018-10-31 16:47:41 الكلمات المفتاحية PASS INET, fused pyridine, pyrrazole;, pyrimidine;, pyrrole, pyridine;, phase transfer catalysis,
Synthesis of Some New F used P yridines and Prediction their Biological Activity via PASS INET
A new series of fused heterocyclic compounds containing pyridine moieties were prepared via the reaction of 2-amino-6-(methylthio)-4-phenylpyridine-3,5-dicarbonitrile with some halo reagents, active methylenes, acetic anhydride, phenylisothiocyanate, hydrazine hydrate or thioacetamide. Accompanied with Predictions of the activity spectra of some selected compounds using PASS INET.at Pa > 70%, showing high probability of Atherosclerosis treatment, Antineoplastic, DNA intercalator, Protein kinase inhibitor and ... إقراء المزيد

Synthesis of Novel Coumarin Derivatives Based on 6-Aminocoumarin, Kinetic Inspection of Base Hydrolysis and Spectrophotometric Tracer of Intermediate Progress

2018-10-18 13:18:54 الكلمات المفتاحية 6-Aminocoumarin Diethyl oxala, Triethyl orthoformate, phase transfer catalysis, Base hydrolysis Kinetics,
Synthesis of Novel Coumarin Derivatives Based on 6-Aminocoumarin, Kinetic Inspection of Base Hydrolysis and Spectrophotometric Tracer of Intermediate Progress
The importance of 6-aminocoumarin, D-glucose, and ethyl cyanoacetate in pharmaceutical field was documented in literatures. Therefore, 6-aminocoumarin was reacted with single and double molarity of D-glucose forming Schiff’s base and bis-compound derivatives. Also, it was reacted with CS2 in phase transfer catalysis condition producing dithiocarbamate, which was used as an intermediate for the preparation of fused and polyfused derivatives. Additionally, ... إقراء المزيد

Synthesis of Novel Fused Heterocycles Based on 6-Amino-4-phenyl-2-thioxo-1,2-dihydropyridine-3,5-dicarbonitrile

2018-09-18 22:04:33 الكلمات المفتاحية phase transfer catalysis,
Synthesis of Novel Fused Heterocycles Based on 6-Amino-4-phenyl-2-thioxo-1,2-dihydropyridine-3,5-dicarbonitrile
Under phase transfer catalysis conditions, 6‐amino‐4‐phenyl‐2‐thioxo‐1,2‐dihydropyridine‐3,5‐dicarbonitrile (1) was allowed to react with halo compounds, acrylonitrile, chloroacetyl chloride, ethyl cyanoacetate, formamide, triethylorthoformate, or formic acid to give new derivatives of fused pyridines 2–22, respectively. Acetylation of compound 1 using acetic anhydride afforded product 23, which in turn underwent intramolecular cyclization in pyridine to give the corresponding pyrido[2,3‐_d_]pyrimidine 24. إقراء المزيد

Synthesis of Some New F used P yridines and Prediction their Biological Activity via PASS INET

2018-09-18 21:57:39 الكلمات المفتاحية PASS INET, fused pyridine, pyrrazole, Pyrimidine, pyrrole, pyridine, phase transfer catalysis,
Synthesis of Some New F used P yridines and Prediction their Biological Activity via PASS INET
A new series of fused heterocyclic compounds containing pyridine moieties were prepared via the reaction of 2-amino-6-(methylthio)-4-phenylpyridine-3,5-dicarbonitrile with some halo reagents, active methylenes, acetic anhydride, phenylisothiocyanate, hydrazine hydrate or thioacetamide. Accompanied with Predictions of the activity spectra of some selected compounds using PASS INET.at Pa > 70%, showing high probability of Atherosclerosis treatment, Antineoplastic, DNA intercalator, Protein kinase inhibitor and ... إقراء المزيد

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