## Abstract An Extended __Hückel__ MO treatment of the system __cis__‐stilbene (I)‐4a, 4b‐dihydrophenanthrene (II) indicates that the concerted photocyclisation is a conrotatory process of the first excited electronic state. The activation energies for the photocyclisation and for the thermal ring
Photochemical ring opening and true photo-oxidation in the 4A,4B-dihydrophenanthrenes
✍ Scribed by T. Knittel-Wismonsky; G. Fischer; E. Fischer
- Book ID
- 104236858
- Publisher
- Elsevier Science
- Year
- 1972
- Tongue
- French
- Weight
- 170 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0040-4039
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✦ Synopsis
In an earlier paper' we drew attention to the possible existence of true photo-oxidation in the dihydrophenanthrenes (DHP's),
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