✦ LIBER ✦

Two Novel Thermal Biradical Cyclizations of Enyne-Ketenimines: Theory, Experiment, and Synthetic Potential

✍ Scribed by Michael Schmittel; Jens-Peter Steffen; Miguel Á. Wencesla Ángel; Bernd Engels; Christian Lennartz; Michael Hanrath

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 110 KB
Volume: 37
Category: Article
ISSN: 0044-8249
DOI: 10.1002/(sici)1521-3773(19980619)37:11<1562::aid-anie1562>3.0.co;2-h

No coin nor oath required. For personal study only.

✦ Synopsis

Both benzocarbazoles and quinolines can be synthesized from enyne ketenimines 1 generated in situ via biradical intermediates (see reaction below). Which of the heterocyclic ring systems is formed depends on the choice of the substituent R at the alkyne terminus.

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