دانلود مقاله با موضوع یدگذاری انتخابی منطقه ای آرن های فعال شده با استفاده از KI-DMSO
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موضوع به انگلیسی:Regioselective iodination of activated arenes using KI-DMSO in
aqueous hydrochloride
بخشی از متن:The KI-DMSO in aqueous hydrochloride has been utilized for selective iodination of activated arenes. The
iodination of substrate such as hydroxyacetophenones, amines, phenols, anisole and toluene took place with high
regioselectivity and mono-iodination was found to occur. The electron releasing substituents (–CH3, –OCH3,
–OH, –NH2) exclusively form para substituted product while ortho-iodination occurred only when para-position
was blocked by other substituents. The method is simple and noteworthy for reactive arenes with comprises some
advantages as easy reaction procedure, short reaction time (5–12 min.) and fair to good yield of aryl iodides
(65–90%). The structure of aryl iodide was established on the basis of spectral and elemental data
