Mohamed ramadan abd allah eletmany (5 Ergebnisse)

Paperback. Zustand: Brand New. 96 pages. 8.66x5.91x0.22 inches. In Stock.

Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book reported the synthetic methods used for the preparation of novel heterocyclic compounds from the reaction of 3-oxo-arylhydrazonal derivatives with active methylene nitriles and some reagents carrying active amino groups in basic medium and in different acidic catalysis such as hydrochloric acid, citric acid and zeolite as a natural heterogeneous catalyst. the reaction of arylhyadrazonal derivatives with cyanoacetic acid hydrazide and different heteraromatic aldehydes and ketones are reported. Also, reaction of arylhydrazonal with ethylcyanodimer, the corresponding pyradizinone was isolated on refluxing ethanol zeolite mixture. However, pyrdazine imine was isolated on refluxing ethanolic piperidine. Reaction of aryl hydrazonals with semicarbazide, thiosemicarbazide and amino guanidine on refluxing ethanol in presence of catalytic amount of zeolite, the corresponding hydrazine carboxamide, hydrazine carbothioamide, hydrazine carboximidamide derivatives were obtained respectively. The chemistry of arylhydrazonal derivatives are reported. The biological activities of the prepared compounds were investigated. 96 pp. Englisch.…

Taschenbuch. Zustand: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - This book reported the synthetic methods used for the preparation of novel heterocyclic compounds from the reaction of 3-oxo-arylhydrazonal derivatives with active methylene nitriles and some reagents carrying active amino groups in basic medium and in different acidic catalysis such as hydrochloric acid, citric acid and zeolite as a natural heterogeneous catalyst. the reaction of arylhyadrazonal derivatives with cyanoacetic acid hydrazide and different heteraromatic aldehydes and ketones are reported. Also, reaction of arylhydrazonal with ethylcyanodimer, the corresponding pyradizinone was isolated on refluxing ethanol zeolite mixture. However, pyrdazine imine was isolated on refluxing ethanolic piperidine. Reaction of aryl hydrazonals with semicarbazide, thiosemicarbazide and amino guanidine on refluxing ethanol in presence of catalytic amount of zeolite, the corresponding hydrazine carboxamide, hydrazine carbothioamide, hydrazine carboximidamide derivatives were obtained respectively. The chemistry of arylhydrazonal derivatives are reported. The biological activities of the prepared compounds were investigated.…

Zustand: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Autor/Autorin: Ramadan Abd Allah Eletmany MohamedMohamed R. Eletmany,Born in Luxor, Egypt in 1987. He received his B.Sc. in Chemistry in 2009 and M.Sc. in Organic Chemistry in 2015 from Faculty of Science, South Valley University, Qena, Egypt. He i.…

Taschenbuch. Zustand: Neu. This item is printed on demand - Print on Demand Titel. Neuware -This book reported the synthetic methods used for the preparation of novel heterocyclic compounds from the reaction of 3-oxo-arylhydrazonal derivatives with active methylene nitriles and some reagents carrying active amino groups in basic medium and in different acidic catalysis such as hydrochloric acid, citric acid and zeolite as a natural heterogeneous catalyst. the reaction of arylhyadrazonal derivatives with cyanoacetic acid hydrazide and different heteraromatic aldehydes and ketones are reported. Also, reaction of arylhydrazonal with ethylcyanodimer, the corresponding pyradizinone was isolated on refluxing ethanol zeolite mixture. However, pyrdazine imine was isolated on refluxing ethanolic piperidine. Reaction of aryl hydrazonals with semicarbazide, thiosemicarbazide and amino guanidine on refluxing ethanol in presence of catalytic amount of zeolite, the corresponding hydrazine carboxamide, hydrazine carbothioamide, hydrazine carboximidamide derivatives were obtained respectively. The chemistry of arylhydrazonal derivatives are reported. The biological activities of the prepared compounds were investigated.VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 96 pp. Englisch.…