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Dienophilic anthracenes: formation of novel triptycenes via thermal and photochemical intramolecular diels-alder reactions of dianthrylethanes

✍ Scribed by Hans-Dieter Becker; Kjell Andersson


Publisher
Elsevier Science
Year
1983
Tongue
French
Weight
254 KB
Volume
24
Category
Article
ISSN
0040-4039

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4Methyl-3-penten-2-01 (1) and cyclopentadiene react in an acidic two phase system at 0Β°C to form allylcyclopentenols 2 and norbornenylcarbinols 4. At 50Β°C and under similar conditions, 2 as well as 4 are equilibrated to allylcyclopentadienes 3, bicyclic olefins 5 and 6 , and tricyclic ether 7. With