A simple means of preparing quinoxaline derivatives: direct introduction of C-nucleophiles into the quinoxaline nucleus by substituting a hydrogen atom
نویسندگان
چکیده
منابع مشابه
Synthesis of tetrazolo [1,5-a]quinoxaline derivatives
Displacement reaction of 2,3-dichloroquinoxaline with secondary amines in boiling ethanol afforded it`s mono aminoquinoxaline derivatives. Further reaction of the latter compounds with sodium azide in warm dimethylsulfoxide achieved a group of 4-amino tetrazolo[1,5-a]quinoxaline derivatives. 1HNMR spectra of these compounds are discussed.
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A simple, highly efficient and green procedure for the condensation of o-phenylenediamines with 1, 2-dicarbonyl compounds in the presence of vitamin C, as an inexpensive organocatalyst, is described. Using this method, variety of quinoxaline derivatives with different electron releasing and electron withdrawing substituents, are produced in high to excellent yields at room temperature in ethano...
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ژورنال
عنوان ژورنال: Pharmaceutical Chemistry Journal
سال: 2013
ISSN: 0091-150X,1573-9031
DOI: 10.1007/s11094-013-0919-0