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DOI: 10.1055/s-0031-1289599
Three-Component Synthesis of Some Novel N-Heterocycle Methyl-O-oxime Ethers
Publication History
Publication Date:
09 November 2011 (online)
Abstract
A convenient and highly efficient protocol for one-pot synthesis of some novel N-heterocycle methyl-O-oxime ethers is described. In this method, three-component coupling of different types of ketoximes, with methylene iodide and nitrogen heterocycles, including imidazoles, benzimidazole, benzotriazole, and theophylline in the presence of an equimolar mixture of K2CO3/Et3N in refluxing MeCN furnished the corresponding N-heterocycle methyl-O-oxime ethers in good yields. This methodology is highly efficient for the synthesis of various structurally diverse N-heterocycle methyl-O-oxime ethers. The results of quantum mechanical studies on reaction intermediates are discussed.
Key words
three-component reaction (3CR) - oxime - O-oxime ether - methylene iodide - N-heterocycle
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