855232-28-9Relevant academic research and scientific papers
Direct Exploitation of the Ethynyl Moiety in Calcium Carbide Through Sealed Ball Milling
Hosseini, Abolfazl,Schreiner, Peter R.
, p. 4339 - 4346 (2020/07/04)
Ball milling of calcium carbide (CaC2) enables the reaction of its ethynyl moiety with organic electrophiles. This was realized simply by co-milling CaC2 with organic substrates in a sealed jar without the need for an additive or a catalyst. Various ketones including those bearing α-hydrogens were ethynylated in good yields at short reaction times. Aryl halides are also amenable substrates for this protocol as they furnish aryl ethynes through a benzyne intermediate. This method offers a practical and cheap alternative to the established procedures for introducing ethynyl functionalities.
Mechanosynthesis of Odd-Numbered Tetraaryl[n]cumulenes
Ardila-Fierro, Karen J.,Bolm, Carsten,Hernández, José G.
supporting information, p. 12945 - 12949 (2019/08/01)
A mechanochemical synthesis of one-dimensional carbon allotrope carbyne model compounds, namely tetraaryl[n]cumulenes (n=3, 5) was realized. Central for the mechanosynthesis of the cumulenic carbon nanostructures were the development of a mechanochemical Favorskii alkynylation-type reaction and the implementation of a solvent-free, acid-free reductive elimination with tin(II) chloride by ball milling.
A Four-Step Synthesis of Substituted 5,11-Dicyano-6,12-diaryltetracenes with Enhanced Stability and High Fluorescence Emission
Kerisit, Nicolas,Gawel, Przemyslaw,Levandowski, Brian,Yang, Yun-Fang,García-López, Víctor,Trapp, Nils,Ruhlmann, Laurent,Boudon, Corinne,Houk, Kendall N.,Diederich, Fran?ois
supporting information, p. 159 - 168 (2017/11/21)
A four-step synthesis of substituted 5,11-dicyano-6,12-diaryltetracenes was developed, starting from readily available para-substituted benzophenones. The key step of this straightforward route is the complex cascade reaction between tetraaryl[3]cumulenes
