ahmedabudief

Dr. Ahmed Mohammed Abu-Dief Mohammed

Assistant Professor - Assistant professor of Inorganic and Physical Chemistry

Faculty of science

Address: Behind hospital of Sohag University - Ali Ebn Abi Taleb Street

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Publications Which contain the keyword: coumarin


2018-11-28 23:13:30 Keywords solvent effect, coumarin ,
Solvent Effects on The Reactivity Trends of Some Coumarin Derivatives
Solvent Effects on The Reactivity Trends of Some Coumarin Derivatives Coumarins have attracted intense interest in recent years because of their diverse pharmacological properties. Among these properties, their cytotoxic effects were most extensively examined, their broad range of effects on the tumors as shown by various in vitro and in vivo experiments. Coumarins have important effects in plant biochemistry and ... Read more

2018-08-29 20:34:42 Keywords base hdrolysis, coumarin ,
Reactivity trends of the base hydrolysis of coumarin and thiocoumarin in binary aqueous–methanol mixtures at different temperatures
Rate constants for base hydrolysis of both coumarin and thiocoumarin have been studied in different binary aqueous–methanol mixtures at temperature range from 288 to 313 K. The activation parameters of the reactions were evaluated. Moreover, the change in the activation barrier of the investigated compounds from water to water–methanol mixtures were estimated from the kinetic data. Read more

2018-08-30 19:56:56 Keywords coumarin , base hydrolysis,
Solvent effects on the kinetics and reactivity trends of base-catalyzed hydrolysis of some chromen-2-one indicator dyes at different temperatures
Solvent effects on the kinetics and reactivity trends of base-catalyzed hydrolysis of some chromen-2-one indicator dyes at different temperatures Read more