Tetrakis(phenylimino)cyclobutane (Tetrameric Phenyl Isocyanide)^†

Prof. Dr. Hans Jürgen Bestmann,

Prof. Dr. Hans Jürgen Bestmann

Institut für Organische Chemie der Universität Erlangen-Nürnberg, Henkestr. 42, D-8520 Erlangen (Germany)

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Dr. Günter Schmid,

Dr. Günter Schmid

Institut für Organische Chemie der Universität Erlangen-Nürnberg, Henkestr. 42, D-8520 Erlangen (Germany)

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Dr. Eberhard Wilhelm,

Corresponding Author

Dr. Eberhard Wilhelm

Institut für Organische Chemie der Universität Erlangen-Nürnberg, Henkestr. 42, D-8520 Erlangen (Germany)

Institut für Organische Chemie der Universität Erlangen-Nürnberg, Henkestr. 42, D-8520 Erlangen (Germany)Search for more papers by this author

Prof. Dr. Hans Jürgen Bestmann,

Prof. Dr. Hans Jürgen Bestmann

Institut für Organische Chemie der Universität Erlangen-Nürnberg, Henkestr. 42, D-8520 Erlangen (Germany)

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Dr. Günter Schmid,

Dr. Günter Schmid

Institut für Organische Chemie der Universität Erlangen-Nürnberg, Henkestr. 42, D-8520 Erlangen (Germany)

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Dr. Eberhard Wilhelm,

Corresponding Author

Dr. Eberhard Wilhelm

Institut für Organische Chemie der Universität Erlangen-Nürnberg, Henkestr. 42, D-8520 Erlangen (Germany)

Institut für Organische Chemie der Universität Erlangen-Nürnberg, Henkestr. 42, D-8520 Erlangen (Germany)Search for more papers by this author

First published: February 1980

https://doi.org/10.1002/anie.198001362

Citations: 7

^†

Dedicated to Professor Rolf Sammet on the occasion of his 60th birthday

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Graphical Abstract

A nitrogen analogue of the hitherto unknown cyclobutane tetraone, the title compound (2), is formed as red-violet crystals from the phosphorane (1) and nitrobenzene in a one-pot reaction. The arrangement of phenyl groups indicated in the formula is confirmed by X-ray structure analysis. (2) is reduced, e.g. by phenylhydrazine, to (3), the first amidine of squaric acid whose N atoms are not linked in a ring.

References

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