Facile and Regioselective Dealkylation of Alkyl Aryl Ethers Using Niobium(V) Pentachloride
作者:Yukinori Sudo、Shigeru Arai、Atsushi Nishida
DOI:10.1002/ejoc.200500502
日期:2006.2
A simple and facile method for the cleavage of carbon–oxygen bonds promoted by niobium pentachloride(V) is described. Excellent yields and regioselectivities were observed with various alkyl aryl ethers to give the phenols. NMR studies revealed the formation of monoaryloxy niobium salt(V), and a neighboring-group effect may play a significant role in the regioselectivity. (© Wiley-VCH Verlag GmbH &
描述了一种由五氯化铌 (V) 促进的碳-氧键断裂的简单易行的方法。用各种烷基芳基醚得到酚类时观察到优异的产率和区域选择性。核磁共振研究揭示了单芳氧基铌盐 (V) 的形成,相邻基团效应可能在区域选择性中起重要作用。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)