77060-52-7Relevant articles and documents
Reactions of lithium with Dimethylfulvene
Schore, N. E.,LaBelle, B. E.
, p. 2306 - 2310 (1981)
lithium reacts with dimethylfulvene in ether or THF to yield exclusively lithium isopropenylcyclopentadienide, the product of proton transfer.Neither steric nor electronic effects alone appear sufficient to explain this anomalous result.A similar reaction in petroleum ether gives rise to three major products: lithium cyclopentadienide and the dilithium salts of 6-(1,3-cyclopentadienyl)-6,8,8-trimethylbicycloocta-1,3-diene and 2,4-bis(1,3-cyclopentadienyl)-4-methyl-1-pentene.The latter compound is a new dimethylfulvene dimer whose monoanion had previously been proposed but not observed as an intermediate in the anionic oligomerization of dimethylfulvene.
