We report the synthesis and structural characterization of the title compound (z), the first known derivative of the intriguing dibenz-annelated planar conjugated eight-membered ring system'. Unlike its parent compound, hydrocarbon 2 was found to be thermally stable, undergoing no detectable decompo
1,4,7,10-Tetramethyl-5,6-didehydrodibenzo[a, e]cyclooctene–(9,12,13,16-tetramethyl-sym-dibenzo-1,3,5-cyclooctatrien-7-yne)
✍ Scribed by Chan, T.-L. ;Lam, Y.-S. ;Mak, T. C. W.
- Book ID
- 114525816
- Publisher
- International Union of Crystallography
- Year
- 1979
- Weight
- 197 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0567-7408
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Swmary. The first known stable crystaZline derivative of 5,6-didehydrodibenzo[a,e]eycZooctene 111, namely, 1,4,7,lO-tetramethyZ-5,6-didehydrodibenzo[a,e]cycZooctene (21, was prepared and unequivocalZy characterised.
The Mn^V^ complex in the title compound, (C~8~H~20~N)[Mn(C~21~H~26~N~4~O~4~)O], is interesting as it has been suggested that Mn^V^ oxospecies are intermediates both in epoxidation of alkenes and in water oxidation in PSII, __i.e.__ photosystem II, the protein found in oxygenic photosynthetic organis
2a ~f 2b ist von groBem theoretischem Interesse'll. Bisher war nur der indirekte Nachweis des Diphenyl-['l und des Bis(dialkylamin~)-Derivats~~~ durch Abfangreaktionen gelungen. Wir berichten uber die blitzthermolytische Eneugung und Matrixisolierung von Cyclopropenyliden 2. Das Vorliegen von Cyclop