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The crystal structure of tricarbonyl-π-tetracyclo[6.0 1.80 9.160 10.154] hexadeca-2,4,6,11,13-pentaene iron

✍ Scribed by A. Robson; Mary R. Truter

Publisher
Elsevier Science
Year
1964
Tongue
French
Weight
174 KB
Volume
5
Category
Article
ISSN
0040-4039

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✦ Synopsis

Jones' found that under mild conditions cycl.ooctatetraene dimeriaed to give two isomers, one (A) with m.p.76' and the other (B) with m.p. 52'. He formulated (A) as 2, with four double bonds. Jones'experimental findings were confirmed by Sohrgder' who alse observed that isomer (A) undergoes photolytic decomposition to benzene and an unidentified hydrocarbon, CC), C,oR,o. He obtained enough evidence to conclude that (C) was bullvalene, tricycle [3.3.2.04'6 Ideca-2,7,9,-triene, II, and that the dimer (A) we.s related to it having formula $&. Eullvalene itseXf had been a hypetheticel conpound postulated by Roering and Roth3 in a review of tranaannular interactions in cyclopropane derivative& Schrauzer, Gloclcner and Her&yi4 found that the reaction of (A) with

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The π-Anisotropy of the Double Bond of a syn-11-Oxasesquinorbornene Derivative.. Stereoselectivity of the Diels–Alder additions of (2-norborneno)[c]furan. Crystal structure of 11-oxa-endo-tetracyclo[6.2.1.13,6.02,7]-dodec-2(7)-ene-9,10-exo-dicarboxylic anhydride
✍ Jean-Pierre Hagenbuch; Pierre Vogel; A. Alan Pinkerton; Dieter Schwarzenbach 📂 Article 📅 1981 🏛 John Wiley and Sons 🌐 German ⚖ 852 KB

## Abstract The reaction of (2‐norborneno)[__c__]furan (**4**) with maleic anhydride gave 11‐oxa‐__endo__‐tetracyclo[6.2.1.1^3,6^.0^2,7^]dodec‐2(7)‐ene‐9,10‐__exo__‐dicarboxylic anhydride (**5**) and, with methyl acetylenedicarboxylate, methyl 11‐oxa‐__endo__‐tetracyclo [6.2.1.1^3,6^.0^2,7^]dodeca‐