𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Synthesis and photo-isomerisation of 7,8-diphenyl-2,3-benzobicyclo[4.2.0]octa-2,4,7-triene and 4,5-diphenylbenzocyclo-octatetraene

✍ Scribed by P.J. Collin; W.H.F. Sasse

Book ID
104249604
Publisher
Elsevier Science
Year
1968
Tongue
French
Weight
270 KB
Volume
9
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

✦ Synopsis

Derivatives of bicyclo[4.2.O]octa-2,4,'7-triene (I) have been invoked as intermediates in the light-induced formation of cycle-octatetraenes from certain acetylenes and benzene (1,2,3) or benzonitrile (4) as well as in the photochemical synthesis of 1:l adducts[e.g., (II)1 from tolan (diphenylacetylene) and naphthalenes (5). In the context of benzene-acetylene photo-additions this concept appears to be consistent with the properties of the valence tautomerism that links simple derivatives of bicyclo[4.2.0]octa-2,4,7-triene with the corres-

📜 SIMILAR VOLUMES

The synthesis and photochemistry of bicy
The synthesis and photochemistry of bicyclo[4.2.0]octa-2,4,7-trienes
✍ Ronald N. Warrener; Ian W. McCay; Richard Y.S. Tan; Richard A. Russell 📂 Article 📅 1979 🏛 Elsevier Science 🌐 French ⚖ 237 KB

Two new crystaZZine bicyclo[4.2.OIocta-2,4,7-trienes have been prepared by photodecarbonylation of the a,v$q+L$; structures confirmed by tricyc~o[4.2.1.0 2~5]nona-3,7-dien-9-ones and their The tztle compounds alI undergo thermal ring opening to cyclooctatetmenes, but photolysis is substituent depend

Polyhalogenierte Bicyclo[4.2.0]octa-1,5,
Polyhalogenierte Bicyclo[4.2.0]octa-1,5,7-triene, XI. Darstellung und Reaktionen von Bicyclo[4.2.0]octa-1,3,5-trien-7,8-diylsulfaten
✍ Roedig, Alfred ;Ganns, Eva Maria ;Ganns, Rainer 📂 Article 📅 1982 🏛 John Wiley and Sons 🌐 English ⚖ 715 KB

## Abstract Die cyclischen Schwefelsäureester **4a, d** und **e** werden aus **1a, d** und **e** mit Schwefelsäure bei Raumtemperatur dargestellt. Bei höherer Temperatur entstehen die Diketone **3a** oder **b**. Sowohl die Thermolyse der Schwefelsäureester bei 180–200°C als auch ihre Säurehydrolyse