7-Cyclooctatetraenyl-ro-propyl alcohol (I), 7-cyclooctatetraenyl-ro•propyl cyanide (V), cyclooctatetraenylmethylcarbinol (VIII), cyclooctatetraenyl methyl ketone (IX) and cycloóctatetraenyldimethylcarbinol (XI) have been prepared by copolymerization of acetylene with functionally substituted acetylenes. N.N-Dimethyl-y-cyclooctatetraenyl-re-propylamine (IV) and 7-cyclooctatetraenyl-M-propyl cyanide (V) were prepared by displacement reactions of the ^-toluenesulfonate III of the alcohol I, and -cycloóctatetraenyl-M-butylamine (VI) and 7-cyclooctatetraenyl-n-butyric acid (VII) by reduction and saponification, respectively, of the cyanide V. The structures of several of the new cyclooctatetraene derivatives were established by conversion to, or preparation from, known cycloóctatetraenes: The primary alcohol I was oxidized to ßcycloóctatetraenylpropionic acid (II); cycloóctatetraenylmethylcarbinol (VIII) was oxidized with sodium hypobromite to cyclooctatetraenecarboxylic acid; cyclooctatetraenyl methyl ketone (IX) was prepared by oxidation of the carbinol VIII; and cycloóctatetraenyldimethylcarbinol (XI) was prepared from methyl cycloóctatetraenecarboxylate and methylmagnesium iodide.