114811-56-2Relevant articles and documents
The Reductive Decyclizations of Semibullvalene
Goldstein, Melvin J.,Wenzel, Timothy T.
, p. 1654 - 1655 (1984)
Reduction of semibullvalene (5) with potassium more closely resembles deprotonation of tetrahydropentalenes by n-butyl-lithium-potassium t-pentoxide than it does the reduction of (5) with lithium; the former processes both provide the cyclo-octatetraenyl dianion (4), plausibly via the intermediate bicyclooctadienediyl dianion (3).