Synthesis of some new 2-(3-aryl-1-phenyl-4-pyrazolyl)-benzoxazoles using hypervalent iodine mediated oxidative cyclization of Schiff's bases.
نویسندگان
چکیده
Ten new 2-(3-aryl-1-phenyl-4-pyrazolyl)benzoxazoles have been synthesized by oxidative intramolecular cyclization of the corresponding Schiff's bases using iodobenzene diacetate in methanol as an oxidant.
منابع مشابه
A facile iodine(III)-mediated synthesis of 3-(3-aryl-1-phenyl-1H-pyrazol-4-yl)-[1,2,4]triazolo[4,3-a]pyridines via oxidation of 2-((3-aryl-1-phenyl-1H-pyrazol-4-yl)methylene)-1-(pyridin-2-yl)hydrazines and their antimicrobial evaluations
BACKGROUND Fused heterocyclic 1,2,4-triazoles have acquired much importance because of their interesting biological properties. Although a number of methods have been reported in the literature which includes oxidation with phosphorus oxychloride, lead tetraacetate, bromine, etc., hypervalent iodine reagents have emerged as reagents of choice for various synthetically useful transformations due...
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ورودعنوان ژورنال:
- Molecules
دوره 11 1 شماره
صفحات -
تاریخ انتشار 2006