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New Planar ?-Systems, II. - On the Preparation and Structure of Tetrakis(phenylethynyl)ethene
Hopf, Henning,Kreutzer, Martin,Jones, Peter G.
, p. 1471 - 1475 (2007/10/02)
The preparation of tetrakis(phenylethynyl)ethene (1b) has been repeated.Among various routes to this highly unsaturated cross-conjugated ?-system, the dimerization of bromide 2 via the carbene 3 is the most simple one.Full spectroscopic data for 1b are re
