The effect of ionic liquids on the outcome of nitrile oxide cycloadditions
摘要:
Nitrile oxide cycloadditions between benzonitrile oxide and a series of alkenes were investigated in ionic liquids and molecular solvents. The regioselectivity of the process alters on changing solvent type, with the steric requirements of the reaction being increased in ionic liquids. The rate of the cycloaddition process was found to be faster in ionic liquid solvents, and a concomitant increase in the rate of dimerisation of the nitrile oxide starting material was also observed. Crown Copyright (C) 2008 Published by Elsevier Ltd. All rights reserved.
The effect of ionic liquids on the outcome of nitrile oxide cycloadditions
作者:Camille E. Rosella、Jason B. Harper
DOI:10.1016/j.tetlet.2008.12.045
日期:2009.3
Nitrile oxide cycloadditions between benzonitrile oxide and a series of alkenes were investigated in ionic liquids and molecular solvents. The regioselectivity of the process alters on changing solvent type, with the steric requirements of the reaction being increased in ionic liquids. The rate of the cycloaddition process was found to be faster in ionic liquid solvents, and a concomitant increase in the rate of dimerisation of the nitrile oxide starting material was also observed. Crown Copyright (C) 2008 Published by Elsevier Ltd. All rights reserved.