Mild oxidative aromatization of 1,4-dihydropyridines with trans-3,5-dihydroperoxy-3,5-dimethyl-1,2-dioxalane promoted by ammonium bromide/HOAc in water/MeCN
نویسندگان
چکیده
منابع مشابه
An effective and mild oxidative aromatization of isoxazolines and 2-pyrazolines by trans-3,5-dihydroperoxy-3,5-dimethyl-1,2-dioxalane promoted by ammonium iodide in water/MeCN
Pyrazoles and isoxazoles are well-known important heterocyclic compounds that due to their participation in the structure of many drugs are very important. Pyrazoles and isoxzaloes can be prepared by oxidation of pyrazolines and isoxazolines respectively. In this work, trans-3,5-dihydroperoxy-3,5-dimethyl-1,2-dioxalane (DHPDMDO)/NH4I has been used as a new, powerful, nearly green, effective and...
متن کاملAn effective and mild oxidative aromatization of isoxazolines and 2-pyrazolines by trans-3,5-dihydroperoxy-3,5-dimethyl-1,2-dioxalane promoted by ammonium iodide in water/MeCN
Pyrazoles and isoxazoles are well-known important heterocyclic compounds that due to their participation in the structure of many drugs are very important. Pyrazoles and isoxzaloes can be prepared by oxidation of pyrazolines and isoxazolines respectively. In this work, trans-3,5-dihydroperoxy-3,5-dimethyl-1,2-dioxalane (DHPDMDO)/NH4I has been used as a new, powerful, nearly green, effective and...
متن کاملan effective and mild oxidative aromatization of isoxazolines and 2-pyrazolines by trans-3,5-dihydroperoxy-3,5-dimethyl-1,2-dioxalane promoted by ammonium iodide in water/mecn
pyrazoles and isoxazoles are well-known important heterocyclic compounds that due to their participation in the structure of many drugs are very important. pyrazoles and isoxzaloes can be prepared by oxidation of pyrazolines and isoxazolines respectively. in this work, trans-3,5-dihydroperoxy-3,5-dimethyl-1,2-dioxalane (dhpdmdo)/nh4i has been used as a new, powerful, nearly green, effective and...
متن کاملOxidative aromatization of some 1,4-dihydropyridines by aqueous hydrogen peroxide in ethanol
Some 3, 5-diacyl or 3,5-diester 1,4-dihydropyridines were oxidized to the corresponding pyridine derivatives using hydrogen peroxide in aqueous ethanol in the presence of potassium bromide and acetic acid as the catalysts. The reaction was carried out in ethanol and products were isolated in high to excellent yields. However, oxidation of 3,5-diacetyl 1,4-dihydropyridines is slower than 3,5-die...
متن کاملAROMATIZATION OF 1,4-DIHYDROPYRIDINES WITH FREE RADICAL REAGENTS
Oxidation of different types of 1,4-dihydropyridines with diphenylpicrylhydrazyl (DPP) and benzoyl peroxide (Bz2O2) as free radical oxidizing agents to pyridine derivatives is reported and a mechanism for this oxidation is also proposed.
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ژورنال
عنوان ژورنال: Cogent Chemistry
سال: 2015
ISSN: 2331-2009
DOI: 10.1080/23312009.2015.1052615