Investigation of copper(II) tetrafluoroborate catalysed epoxide opening
作者:Amy S. Capes、Arthur T. Crossman、Lauren A. Webster、Michael A.J. Ferguson、Ian H. Gilbert
DOI:10.1016/j.tetlet.2011.10.090
日期:2011.12
We report the extension of the copper(II) tetrafluoroborate catalysed opening of epoxides with alcohols to include a wider variety of alcohols, a range of solvents and a method to purify the products from the reaction. (C) 2011 Elsevier Ltd. All rights reserved.
Tris(pentafluorophenyl)borane: a mild and efficient catalyst for the chemoselective tritylation of alcohols
described using triphenylmethanol in the presence of tris(pentafluorophenyl)borane (3 mol %) in dichloromethane at room temperature. The chemoselectivity of this protocol is demonstrated by studying the tritylation of a primary alcohol in the presence of a secondary alcohol and also the mildness of this catalyst was studied with substrates containing acid labile protecting groups.