Synthesis of 1-haloethenamides from ynamide through halotrimethylsilane-mediated hydrohalogenation
作者:Kazuhiro Ohashi、Shigenori Mihara、Akihiro H. Sato、Masataka Ide、Tetsuo Iwasawa
DOI:10.1016/j.tetlet.2013.11.091
日期:2014.1
convenient synthesis of 1-haloethenamides has been achieved by utilizing halotrimethylsilane (TMSX, X = Cl, Br, I) and water. Halotrimethylsilane in 1 M CH2-Cl-2 solution functions as a halogen source of the in situ generated HX, and the HX added to the terminal triple bonds of ynamides in Markovnikov fashion. (C) 2013 Elsevier Ltd. All rights reserved.
Palladium-catalysed ligand-free reductive Heck cycloisomerisation of 1,6-en-α-chloro-enamides
作者:Yangyang Hou、Jing Ma、Hongyi Yang、Edward A. Anderson、Andy Whiting、Na Wu
DOI:10.1039/c9cc00537d
日期:——
The first example of an intramolecular hydroarylation of 1,6-en-α-chloro-enamides was achieved by a palladium-catalysed ligand-free reductive Heck cycloisomerisation with no competing Heck-cyclised by-product.