ISSN:
1434-193X
Schlagwort(e):
Cycloadditions
;
Photochemistry
;
Cage compounds
;
Quinones
;
Density functional calculations
;
Chemistry
;
General Chemistry
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
Thermal addition of o-benzoquinones to barrelenes (bicyclo[2.2.2]octatrienes) produces tetracyclic trienediones of type 1. These multichromophoric molecules offer a plethora of photochemical reactions of which the most interesting are (1) rearrangement and bisdecarbonylation of the enedione chromophore and (2) [2π + 2π] intramolecular cycloaddition of the face-to-face double bonds. Theoretical methods (semiempirical as well as density functional) were also used to investigate the spin multiplicity diversity of these reactions. The diketone 7 (bicyclo[2.2.2]octa-5,7-diene-2,3-dione) was investigated using He(I) photoelectron spectroscopy.
Zusätzliches Material:
8 Ill.
Materialart:
Digitale Medien
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