Synthesis of Arecatannin A1 from Dimeric Epicatechin Electrophile
نویسندگان
چکیده
منابع مشابه
synthesis of sulfides from alcohols and thiols in solvent-freeconditions and deoxygenation of sulfoxides
کاتالیست یک سنتز جدید برای تیواترها توصیف شده است. واکنش الکل ها با آریل، هتروآریل و آلکیل تیو ل ها درحضور 1،3،5- تری آزو- 2،4،6- تری فسفرین-2،2،4،4،6،6 هگزاکلراید ((tapc به عنوان یک کاتالیست موُثر، بازده های خوب تا عالی از تیواترها را حاصل می کند. علاوه براین، واکنش تحت شرایط بدون فلز و بدون حلال پیش می رود، بنابراین یک مکمل جالب برای روش های شناخته شده سنتز تیواترها ارائه می دهد. یک مکانیسم ا...
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متن کاملThe Electrophile Desolvation Process in Nucleophile - Electrophile Combination Reactions *
where k is the rate constant for a reaction of an electrophile with a given nucleophilic system, k 0 is dependent solely on the identity of the electrophile and N + is a parameter characteristic of the nucleophilic system. The most surprising result of this relation is its incompatibility with the reactivity-selectivity principle, because, since N + is independent of the electrophile, the relat...
متن کاملEpicatechin, catechin, and dimeric procyanidins inhibit PMA-induced NF-kappaB activation at multiple steps in Jurkat T cells.
The capacity of the flavan-3-ols [(-)-epicatechin (EC) and (+)-catechin (CT)] and a B dimeric procyanidin (DP-B) to modulate phorbol 12-myristate 13-acetate (PMA)-induced NF-kappaB activation in Jurkat T cells was investigated. The classic PMA-triggered increase in cell oxidants was prevented when cells were preincubated for 24 h with EC, CT, or DP-B (1.7-17.2 microM). PMA induced the phosphory...
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ژورنال
عنوان ژورنال: Natural Product Communications
سال: 2015
ISSN: 1934-578X,1555-9475
DOI: 10.1177/1934578x1501000642