Synthesis of substituted quinolines from N-aryl-N-(2-alkynyl)toluenesulfonamides via FeCl3-mediated intramolecular cyclization and concomitant detosylation
摘要:
A series of substituted quinolines have been synthesized in moderate to good yields (55-81%) from easily available substrates N-aryl-N-(2-alkynyl)toluenesulfonamides via FeCl3-mediated intramolecular cyclization and concomitant detosylation. (C) 2012 Elsevier Ltd. All rights reserved.
Synthesis of substituted quinolines from N-aryl-N-(2-alkynyl)toluenesulfonamides via FeCl3-mediated intramolecular cyclization and concomitant detosylation
摘要:
A series of substituted quinolines have been synthesized in moderate to good yields (55-81%) from easily available substrates N-aryl-N-(2-alkynyl)toluenesulfonamides via FeCl3-mediated intramolecular cyclization and concomitant detosylation. (C) 2012 Elsevier Ltd. All rights reserved.
Iron(III)‐Promoted Synthesis of 3‐(Organoselanyl)‐1,2‐Dihydroquinolines from Diorganyl Diselenides and
<i>N</i>
‐Arylpropargylamines by Sequential Carbon‐Carbon and Carbon‐Selenium Bond Formation
作者:Tales A. C. Goulart、João A. G. Kazmirski、Davi F. Back、Gilson Zeni
DOI:10.1002/adsc.201801097
日期:2019.1.11
for the preparation of 3‐(organoselanyl)‐1,2‐dihydroquinolines. The best result was obtained when the reaction of N‐arylpropargylamines was carried out by the combination of diorganyl diselenides with FeCl3 ⋅ 6H2O in nitromethane at 70 °C. The control experiments strongly support the cooperative relation between the iron salts and diorganyl diselenides and their high reactivity not only to promote the
Iron-catalyzed carboarylation of alkynes <i>via</i> activation of π-activated alcohols: rapid synthesis of substituted benzofused six-membered heterocycles
作者:Rupsa Chanda、Abhishek Kar、Aniruddha Das、Baitan Chakraborty、Umasish Jana
DOI:10.1039/d1ob00488c
日期:——
the straightforward synthesis of densely substituted 1,2-dihydroquinolines from N-propargyl anilides and π-activated alcohols. The reaction provides a new method for the synthesis of highly substituted benzofused six-membered heterocycles by the formation of two carbon–carbon bonds and one ring in a single step. The power of the methodology was further extended to the synthesis of substituted chromene