Superacid catalyzed ring-opening reactions involving 2-oxazolines and the role of superelectrophilic intermediates
摘要:
A variety of 2-oxazolines are found to react with arenes in superacidic triflic acid, CF3SO3H. It is proposed that the 2-oxazolines are protonated twice in triflic acid and the resulting intermediates undergo ring-opening reactions to produce reactive, dicationic species. These superelectrophiles are capable of reacting with benzene and o-dichlorobenzene in high yields by Friedel-Crafts type reactions. (C) 2004 Elsevier Ltd. All rights reserved.
Superacid catalyzed ring-opening reactions involving 2-oxazolines and the role of superelectrophilic intermediates
作者:Douglas A. Klumpp、Rendy Rendy、Aaron McElrea
DOI:10.1016/j.tetlet.2004.08.109
日期:2004.10
A variety of 2-oxazolines are found to react with arenes in superacidic triflic acid, CF3SO3H. It is proposed that the 2-oxazolines are protonated twice in triflic acid and the resulting intermediates undergo ring-opening reactions to produce reactive, dicationic species. These superelectrophiles are capable of reacting with benzene and o-dichlorobenzene in high yields by Friedel-Crafts type reactions. (C) 2004 Elsevier Ltd. All rights reserved.