Copper-catalyzed alkyne–aryne coupling reaction under microwave conditions: preparation of unsymmetric and symmetric di-substituted alkynes
摘要:
Several unsymmetric and symmetric alkynes were prepared excellent to modest yields by generating benzyne from the reaction of 2-(trimethylsilyl)phenyl triflate with CsF in the presence of Cul and terminal alkyne under microwave heating for 30 min at 150 degrees C. Using conventional heating, the reactions required 24 h reaction time. (C) 2009 Elsevier Ltd. All rights reserved.
B(C<sub>6</sub>F<sub>5</sub>)<sub>3</sub>-Catalyzed cyclization of alkynes: direct synthesis of 3-silyl heterocyclic compounds
作者:Mengxing Li、Ting Wang、Zhenyu An、Rulong Yan
DOI:10.1039/d0cc04314a
日期:——
An efficient one-pot strategy for easy access to 3-silyl heterocyclic compounds was developed via a B(C6F5)3-catalyzed cycloaddition reaction of o-(1-alkynyl)(thio)anisoles or o-(1-alkynyl)-N-methylaniline.
Copper-catalyzed alkyne–aryne coupling reaction under microwave conditions: preparation of unsymmetric and symmetric di-substituted alkynes
作者:Shashidhar Kumar Akubathini、Ed Biehl
DOI:10.1016/j.tetlet.2009.02.033
日期:2009.4
Several unsymmetric and symmetric alkynes were prepared excellent to modest yields by generating benzyne from the reaction of 2-(trimethylsilyl)phenyl triflate with CsF in the presence of Cul and terminal alkyne under microwave heating for 30 min at 150 degrees C. Using conventional heating, the reactions required 24 h reaction time. (C) 2009 Elsevier Ltd. All rights reserved.