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Heterocyclohexaaromat mit „face-to-face”-Anordnung zweier Benzolringe

✍ Scribed by Prof. Dr. Thomas Kauffmann; Dr. Herbert Lexy

Publisher: John Wiley and Sons
Year: 1978
Tongue: English
Weight: 260 KB
Volume: 90
Category: Article
ISSN: 0044-8249
DOI: 10.1002/ange.19780901015

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✦ Synopsis

Mechanistische Befunde bei [2 + 21-Photocycloadditionen von trans-Stilben (1) und Diphenylacetylen (5)15] liel3en vorhersehen, daB (1 *) und ( 5 * ) von Bicycloalkenen rnit zweifach uberbruckten Doppelbindungen wirkungsvoller zu Propellanen als von einfachen Cycloalkenen zu bicyclischen

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✍ Prof. Dr. Thomas Kauffmann; Dr. Herbert Lexy 📂 Article 📅 1978 🏛 John Wiley and Sons 🌐 English ⚖ 246 KB 👁 1 views

despite the high temperature. Thus, according to diffractometer measurements the residue still has the crystallinity of the startingcellulose even after 50 % degradation. Nor do scanning electron photomicrographs show any serious changes in the structure at this stage of the degradation. Chitin (Fl