54396-71-3Relevant academic research and scientific papers
Selenobenzophenones and diazoalkanes: Isolation of tetraarylethylenes by the reaction of benzophenone hydrazones with diselenium dibromide
Okuma, Kentaro,Kojima, Kazuki,Oyama, Kosuke,Kubo, Kento,Shioji, Kosei
, p. 820 - 825 (2007/10/03)
The reaction of selenobenzophenones with diazomethane afforded the corresponding diarylethylenes and symmetrical olefins. The reaction with diaryldiazomethanes gave three different types of tetraarylethylenes. This reaction proceeded through 1,3,4-selenadiazoline intermediates, and retrocyclization was observed. The formation of 1,3,4-selendiazolines was independently confirmed by the reaction of benzophenone hydrazones with diselenium dibromide, which afforded tetraarylethylenes in good yields. This method is applicable to the two-step synthesis of tetraarylethylenes from benzophenones. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004.
Multiple Extrusion Methods for the Preparation of Sterically Hindered Olefins. An Approach to Tetra-tert-butylethylene
Guziec, Frank S.,Murphy, Christopher J.
, p. 2890 - 2893 (2007/10/02)
While twofold extrusion procedures have proved to be very useful in the preparation of very sterically hindered olefins, the extremely hindered tetra-tert-butylethylene (1) has remained elusive.An approach to 1 based on "tied-back" intermediates such as t
Synthesis and properties of monomeric selenoketones
Back, Thomas G.,Barton, Derek H.R.,Britten-Kelly, Michael R.,Guziec Jr., Frank S.
, p. 539 - 539 (2007/10/10)
The preparation and reactions of di-t-butyl selenoketone (Ib) and of (-)-selenofenchone (IIb) are described; fenchylidenefenchane (VI) has been synthesised.
