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Syntheses and tandem Diels-Alder reactivities of 7,7-diphenyl-[2.2.1]hericene (= 7-(diphenylmethylidene)-2,3,5,6- tetramethylidenebicyclo[2.2.1]heptane) and 7-oxa[2.2.1]hericene ( = 2,3,5,6-tetramethylidenebicyclo[2.2.1]heptan-7-one)

✍ Scribed by Albino Rubello; Pierre Vogel

Publisher
John Wiley and Sons
Year
1988
Tongue
German
Weight
925 KB
Volume
71
Category
Article
ISSN
0018-019X

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✦ Synopsis

Syntheses and Tandem Diels-Alder Reactivities of 7,7-Diphenyl-[2.2.l]hericene (= 7-(Diphenylmethylidene)-2,3,5,6tetramethylidenebicyclo[2.2.ljheptane) and 7-0xa[2.2. llhericene ( = 2,3,5,6-Tetramethylidenebicyclo[2.2.

📜 SIMILAR VOLUMES

Synthesis and Diels-Alder Reactivity of
Synthesis and Diels-Alder Reactivity of 1-(Dimethoxy)methyl-2,3,5,6-tetramethylidene-7-oxabicyclo[2.2.1]heptane. Preliminary communication
✍ Jean-Luc Métral; Pierre Vogel 📂 Article 📅 1985 🏛 John Wiley and Sons 🌐 German ⚖ 221 KB 👁 1 views

## Abstract A short synthesis of the title compound **13** is reported. The acetal group in **13** enables one to control the regio‐ and stereoselectivity of the two successive __Diels__‐__Alder__ additions of the tetraene. The first addition is significantly faster than the second one, thus making

Tétraméthylidène-2, 3, 5, 6-oxa-7-bicycl
Tétraméthylidène-2, 3, 5, 6-oxa-7-bicyclo[2.2.1]heptane. (Communication préliminaire)
✍ Pierre Vogel; André Florey 📂 Article 📅 1974 🏛 John Wiley and Sons 🌐 German ⚖ 265 KB

## Abstract Preparation of the title compound (**4**) is described. An important transannular effect between the two unconjugated __s‐cis__‐butadiene chromophores is observed by comparison of the UV. spectra of the dimethylidene‐oxanorbornane **3** and the tetramethylidene‐oxanor‐bornane **4**.