REACTIVITIES OF ARYL RADICALS IN HYDROGEN ABSTRACTION AND ADDITION
نویسندگان
چکیده
منابع مشابه
Hydrogen-Abstraction/Acetylene-Addition Exposed.
Polycyclic aromatic hydrocarbons (PAHs) are omnipresent in the interstellar medium (ISM) and also in carbonaceous meteorites (CM) such as Murchison. However, the basic reaction routes leading to the formation of even the simplest PAH-naphthalene (C10 H8 )-via the hydrogen-abstraction/acetylene-addition (HACA) mechanism still remain ambiguous. Here, by revealing the uncharted fundamental chemist...
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در این پروژه ترکیبات 3-آریل-2h-بنزو[b]-4،1-اکسازین ها از مواد اولیه تجاری مشتقات دو آمینو فنول و ?-هالو کتون های آروماتیک در مایع یونی 1-اکتیل-3-متیل ایمیدازولیوم تترا فلورو بورات([omim]bf4) سنتز شده است. این واکنش توسط باز پتاسیم کربنات محلول از طریق o-آلکیلاسیون و سپس یک واکنش آمیداسیون درون مولکولی خود بخود در مدت زمان کوتاه انجام می شود. ترکیبات 4،1-بنزوکسازین به این روش با بهره خوب تا آلی ...
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Interest in the biofuel candidate n-butyl formate has increased due to new synthesis pathways and recently indicated negative temperature coefficient (NTC) behavior. Modeling is so far based on analogy estimates only and underlines the importance of initial hydrogen abstraction reactions. This study presents the (to our knowledge) first ab-initio reaction kinetics for nbutyl formate. Its numero...
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preventive factors against many diseases. Polyphenols, including flavonoids for example, catechins from green tea, which have been reported to be one of the strongest radical scavengers of peroxynitrite and other radicals. Their pharmacokinetic behavior has also been extensively examined. It is therefore generally accepted that flavonoids are a major food sourced antioxidant. Anthocyanins are a...
متن کاملHydrogen-addition radicals formed in the aromatic rings of amino acids, polyamino acids, and proteins.
Since the original detection of electron spin resonance (ESR) signals from free radicals formed by ionizing irradiation in the amino acids and proteins,' numerous ESR studies of these and other powdered peptides have been made.2-'0 The free radicals that have been identified in these studies have been formed for the most part by the breakage of a CaH bond to leave the electron spin concenltrate...
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ژورنال
عنوان ژورنال: Chemistry Letters
سال: 1973
ISSN: 0366-7022,1348-0715
DOI: 10.1246/cl.1973.193