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Molecules 2000, 5(12), 1372-1378; doi:10.3390/51201372

Synthesis and Photochemical Cyclization of a Novel Enyne-Carbodiimide

1,* , 1,2 and 1
1 FB 8 - OC1 (Chemie und Biologie), Universität Siegen, Adolf-Reichwein-Strasse, D-57068 Siegen, Germany 2 Present address: Facultad de Química, Universidad de Santiago de Compostela, Spain
* Author to whom correspondence should be addressed.
Received: 21 July 2000 / Accepted: 19 October 2000 / Published: 20 December 2000
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The triplet sensitized cyclization of enyne-carbodiimide 4 leads to efficient formation of indoloquinoline 5 with concomittant loss of a methyl group. The efficient loss of the methyl group was explained using AM1 semiempirical calculations.
Keywords: Carbodiimides; diradicals; enynes; photocyclization; triplet Carbodiimides; diradicals; enynes; photocyclization; triplet
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Schmittel, M.; Rodríguez, D.; Steffen, J.-P. Synthesis and Photochemical Cyclization of a Novel Enyne-Carbodiimide. Molecules 2000, 5, 1372-1378.

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