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Z. Naturforsch. 2014,
69b, 924 – 944
doi:10.5560/ZNB.2014-3198
Synthesis of Functionalized Diaryldiazenes by Formal [3+3] Cyclizations of 1,3-Bis(silyloxy)-1,3-butadienes with 2-Aryldiazenyl-3-silyloxy-2-en-1-ones
1 Institut für Chemie, Universität Rostock, Albert-Einstein-Str. 3a, 18059 Rostock, Germany
2 Institut für Pharmazie, Ernst-Moritz-Arndt-Universität Greifswald, F.-L.-Jahn-Str. 17, 17487 Greifswald, Germany
3 Atyrau Institute of Oil and Gas, Atyrau, Republic of Kazakhstan
4 Amity University, Lucknow Campus, Viraj Khand-5, Gomti Nagar, Lucknow – 226010, India
5 Leibniz-Institut für Katalyse e. V. an der Universität Rostock, Albert-Einstein-Str. 29a, 18059 Rostock, Germany
Reprint requests to Prof. Peter Langer. Fax: +381 4986412. E-mail:
peter.langer@uni-rostock.de
Received July 22, 2013; in revised form March 27, 2014 / published online August 12, 2014
The formal [3+3] cyclization of 1,3-bis(silyloxy)-1,3-butadienes with 2-aryldiazenyl-3-silyloxy-2-en-1-ones afforded a variety of functionalized diaryl-diazenes.
Key words: Azo Compounds, Cyclizations, Diazenes, Silyl Enol Ethers, Salicylates