A one-pot synthesis of 1-arylalka-1,3-diynes by sequential acetylene zipper and Sonogashira reactions
作者:Irina A. Balova、Svetlana N. Morozkina、David W. Knight、Sergei F. Vasilevsky
DOI:10.1016/s0040-4039(02)02496-6
日期:2003.1
1,3-Diynes, formed in situ by base-induced acetylene zipper reactions, following anion quenching with water, undergo smooth Sonogashira-type couplings with functionalized aryl iodides, to give good overall yields of 1-arylalka-1,3-diynes.
“Acetylene Zipper” Reactions and Pd-Cu-Catalyzed Cross-coupling in the Synthesis of Vicinal 1,3-Alkadiynylarylamines and Aminopyridines
作者:I. A. Balova、S. N. Morozkina、V. N. Sorokoumov、O. V. Vinogradova、S. F. Vasilevskii
DOI:10.1023/b:rujo.0000013136.99262.26
日期:2003.11
A preparative method was developed for vicinal-substituted 1,3-alkadiynylarylamines and aminopyridines involving a successive application of "acetylene zipper" reaction to synthesize 1,3-alkadiynes followed by Sonogashira reaction.
The Richter reaction of ortho-(alka-1,3-diynyl)aryldiazonium salts
作者:Olga V. Vinogradova、Victor N. Sorokoumov、Sergey F. Vasilevsky、Irina A. Balova
DOI:10.1016/j.tetlet.2007.05.055
日期:2007.7
The cyclisation of various ortho-buta-1,3-diynylaryldiazonium salts was studied and shown to depend on the reaction conditions and nature of the substituents on the benzene ring. The reaction leads to 4-chloro-3-ethynylcinnolines, and/or 3-ethynyl-4-hydroxycinnolines, the latter undergoing subsequent cyclisation to give furo[3,2-c]cinnolines. (c) 2007 Elsevier Ltd. All rights reserved.