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One-pot and one-step novel N-methylation of 2,6-diaminopyridine | ||
| Iranian chemical communication | ||
| مقاله 1، دوره 2، Issue 3, pp. 162-231, Serial No. 4، مهر 2014، صفحه 162-167 اصل مقاله (128.36 K) | ||
| نوع مقاله: Original Research Article | ||
| نویسندگان | ||
| Mehdi Nabati* ؛ Mehrdad Mahkam | ||
| Chemistry Department, Faculty of Science, Azarbaijan Shahid Madani University, Tabriz, Iran | ||
| چکیده | ||
| 2,6-diaminopyridine is extensively used as a pharmaceutical intermediate and a hair dye coupler as oxidation formulations. It is soluble in protic solvents. Primary and secondary amines are N-methylated by various methods such as direct alkylation of amines with Hofmann mechanism, but in many of these methods due to overalkylations, we earn a mixture of amino products. Consequently, they aren't selective in secondary amines preparation. Also, the selective synthesis of secondary amines is a problematic field in organic chemistry. 2,6-diaminopyridine can be selective N-methylated from reaction of this compound with sodium azide and orthoformic ester in low time with good yields. | ||
| کلیدواژهها | ||
| 2,6-diaminopyridine؛ N-methylation؛ selectivity؛ one-pot reaction | ||
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