183789-20-0Relevant articles and documents
Waste-minimised copper-catalysed azide-alkyne cycloaddition in Polarclean as a reusable and safe reaction medium
Luciani, Lorenzo,Goff, Emily,Lanari, Daniela,Santoro, Stefano,Vaccaro, Luigi
supporting information, p. 183 - 187 (2018/01/17)
Herein we report the first example of a generally useful organic reaction, namely the copper-catalysed azide-alkyne cycloaddition, performed in a Polarclean/water mixture as a reaction medium. The process is very efficient, affording in 24 out of the 26 tested cases the desired triazole in quantitative yields. Product isolation is also very convenient, since the triazoles either precipitate or form a separate liquid phase, without the need to perform chromatographic separations. Moreover, since the metal catalyst is retained in the Polarclean/water phase, the catalyst/reaction medium can be easily reused for consecutive reaction runs, without an apparent loss in efficiency. This methodology is associated with very limited waste production, as evidenced by calculated E-factors in the range 2.6-3.7.
Synthesis and Properties of Functional Twisted Tolanes
Kozhemyakin, Yury,Kretzschmar, Andreas,Kr?mer, Maximilian,Rominger, Frank,Dreuw, Andreas,Bunz, Uwe H. F.
, p. 9908 - 9918 (2017/07/25)
The synthesis and optical properties of several novel fluorescent and/or phosphorescent bridged tolanes (tolanophanes) are reported and their optical and structural properties are investigated. Specifically, diiodinated and bisalkynylated tolanophanes were obtained, and characterized by spectroscopy and computational methods. They represent attractive building blocks for novel polymers and emissive solid-state materials.
Synthesis of Functionalized Alkylidene Indanes and Indanones through Tandem Phosphine-Palladium Catalysis
Fan, Yi Chiao,Kwon, Ohyun
supporting information, p. 2058 - 2061 (2015/05/20)
Densely functionalized alkylidene indanes and indanones can be prepared efficiently in one pot, in high yields with good stereoselectivities (in some cases exclusively the Z-isomer), through a route involving phosphine-catalyzed Michael addition followed