Bromo cyclo-octatetraene

Mercuric acetate, reaction with cyclo-octatetraene, 50, 24 Mercuric oxide, use in oxidation of hydrazones, 50, 28 with 3-chlorocyclobutanecarboxylic acid and bromine to give 1-bromo-... 

Heptacyclo[8,6,0,0 , 0 , 0 ,0 ,0 ]hexadecane (697) together with the known 3,14-ethanodiamantane (ratio 1 4) are the products of AlBtj-Bu Br treatment of a hydrogenated C Hjo dimer of cyclo-octatetraene. Bromination of (697) with boiling bromine gave the 5-bromo-derivative, whose structure was verified... 

Electrolysis of l-bromo-4-chlorobicyclo[2,2,0]hexane affords A -bicyclo[2,2,0]-hexane, which can be extracted into pentane. On standing at room temperature the olefin self-reacts to give (719), presumably by ring-opening of the initial propellane formed by [2 + 2]-type dimerization. Further developments are reported on studies of bond fixation in isomers of alkylated cyclo-octatetraenes, some of which have been prepared by the thermolysis of the appropriate propellatrienes. The... 

Phenyl-l,2,4-triazolinedione reacts with the valence isomer of cyclo-octatetraene in the expected [4 + 2] manner reaction to give (58) probably proceeds via a dipolar intermediate. In support of this view fluoro- and chloro-cyclo-octatetraene do not, but bromo- and iodo-cyclo-octatetraene do give adducts of type (58). Methoxy- and phenoxy-cyclo-octatetraene favour adducts of type (58). 

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