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Photocyclization reactions of aryl polyenes—VI: The photocyclization of 1,4-diaryl-1,3-butadienes

✍ Scribed by R.J. Hayward; A.C. Hopkinson; C.C. Leznoff


Publisher
Elsevier Science
Year
1972
Tongue
French
Weight
565 KB
Volume
28
Category
Article
ISSN
0040-4020

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✍ R. J. F. M. van Arendonk; P. H. Fornier de Violet; W. H. Laarhoven 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 601 KB

## Abstract The formation of a 1,2,4‐cyclohexatriene derivative (__cf__. 7) from the singlet‐excited __cis__‐butenyne is thought to be the primary reaction step in the photocyclization of 1,4‐diarylbutenynes. This very reactive intermediate can yield the end‐product along various pathways: (__i__)