نتایج جستجو برای: 1, 3-Diethyl-2-thiobarbituric acid
تعداد نتایج: 4935260 فیلتر نتایج به سال:
Antioxidants are vital substances which possess the ability to protect the body from damage caused by free radical-induced oxidative stress. A variety of free radical scavenging antioxidants exist within the body which many of them are derived from dietary sources like fruits, vegetables and teas. This article describes a test method for screening the antioxidant activity of 60 Iranian plant...
Antioxidants are vital substances which possess the ability to protect the body from damage caused by free radical-induced oxidative stress. A variety of free radical scavenging antioxidants exist within the body which many of them are derived from dietary sources like fruits, vegetables and teas. This article describes a test method for screening the antioxidant activity of 60 Iranian plant...
antioxidants are vital substances which possess the ability to protect the body from damage caused by free radical-induced oxidative stress. a variety of free radical scavenging antioxidants exist within the body which many of them are derived from dietary sources like fruits, vegetables and teas. this article describes a test method for screening the antioxidant activity of 60 iranian plants o...
a facile one step synthesis of anilino alky1-n-substituted phthalimide i is reported. the following compounds belonging to this series were made: 1. (anilino-n-ethyl) phthalimide 8 2. (3,4, 5-trimethoxy anilino-n-ethyl) phthalimide 6 3. (3,4, 5-trimethoxy anilino-n-propyl) phthalimide 7 4. n-(ethyl phthalirnido-p-amino benzoyl) glutamic acid diethyl ester 10 5. n-(propyl phthalimido-p-amino ben...
The radical-scavenging activities of two thiols, eight (thio)barbituric acid derivatives and six chain-breaking phenolic antioxidants were investigated using the induction period method for polymerization of methyl methacrylate (MMA) initiated by thermal decomposition of 2,2’-azobisisobutyronitrile (AIBN) and monitored by differential scanning calorimetry (DSC). The induction period (IP) for th...
Organophosphorous compounds are widely used as biologically active agents. Two well-known pesticides belong to this group: dibutyl 1-butylamino-1cyclohexanephosphonate (DBBC) and 2,4-dichlorophenoxyacetic acid (2,4-D) [1, 2]. Their oxidative properties were studied and compared with those of diethyl 9-butylamino-9-fluorenephosphonate (DEBF). All these compounds also interact with biological and...
Reaction of thionyl chloride with 7-chloro-1-cyclopropyl-6-fluoro-1,4-dihydro-4- oxoquinoline-3-carboxylic acid 1 gave acid chloride 2. Compound 2 was reacted with glycine and D-glutamic acid to afford 2-(7-chloro-1-cyclopropyl-6-fluoro-4-oxo-1,4- dihydroquinoline-3-carbonyl) aminopantandioicacid 3a and 2-(7-chloro-1-cyclopropyl-6- fluoro -4- oxo-1,4-dihydroquinoline-3-carbonyl)aminoacetica...
A facile one step synthesis of anilino alky1-N-substituted phthalimide I is reported. The following compounds belonging to this series were made: 1. (anilino-N-ethyl) phthalimide 8 2. (3,4, 5-trimethoxy anilino-N-ethyl) phthalimide 6 3. (3,4, 5-trimethoxy anilino-N-propyl) phthalimide 7 4. N-(ethyl phthalirnido-p-amino benzoyl) glutamic acid diethyl ester 10 5. N-(propyl phthalimido-p-ami...
اثرات حشره کشی و دورکنندگی عصاره گیاهان پنیر باد و علف مار بر tribolium confusum و sitophilus oryzae
در این تحقیق به منظور کاهش خسارت آفات و اثرات نامطلوب آفت کش ها در محصولات انباری اثرات حشره کشی و دور کنندگی عصاره متانولی و استونی میوه پنیر باد (withania coegulans) و علف مار(capparis spinosa) روی حشرات کامل شپشه آرد (tribolium confusum) و شپشه برنج (sitophilus oryzae) در دمای 1 ±27 درجه سانتی گراد و رطوبت نسبی 5±65 درصد و در تاریکی مورد بررسی قرار گرفت. آزمایش سمیت تماسی روی حشرات 1 تا 7 رو...
The synthesis of the new diethyl ammonium salt of diethylammonium(E)-5-(1,5-bis(4-fluorophenyl)-3-oxopent-4-en-1-yl)-1,3-diethyl-4,6-dioxo-2-thioxohexaydropyrimidin-5-ide 3 via a regioselective Michael addition of N,N-diethylthiobarbituric acid 1 to dienone 2 is described. In 3, the carboanion of the thiobarbituric moiety is stabilized by the strong intramolecular electron delocalization with t...
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