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Photochemische Cycloadditionen von 3-Phenyl-2H-azirinen mit kumulierten Doppelbindungen. Vorläufige Mitteilung

✍ Scribed by B. Jackson; N. Gakis; M. Märky; H.-J. Hansen; W. von Philipsborn; H. Schmid


Publisher
John Wiley and Sons
Year
1972
Tongue
German
Weight
166 KB
Volume
55
Category
Article
ISSN
0018-019X

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✦ Synopsis


Abstract

Irradiation of 2‐methyl‐ (1c) and 2,2‐dimethyl‐3‐phenyl‐2H‐azirine (1d) in benzene solution in the presence of carbon dioxide yields 2‐methyl‐4‐phenyl‐ (3c) and 2,2‐dimethyl‐4‐phenyl‐3‐oxazolin‐5‐one (3d), respectively. Similar cycloadducts are observed (see table) when 2,3‐diphenyl‐2H‐azirine (1b) and 1d are irradiated in the presence of phenylisocyanate, o‐tolylisocyanate, phenylisothiocyanate or di‐o‐tolyl‐carbodiimide.


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