Organometallic Derivatives of Cyclopropanes

Article abstract of DOI:10.1002/hlca.19920750624

The tricarbonylchromium complex of cyclopropanaphthalene (3a) is deprotonated at C(1) with BuLi.Quenching of the resulting anion with MeI results in a 1:1 mixture of stereoisomeric methyl derivatives 6a and 6b.Peterson olefination of the bis-silylated complex 3b affords the complexed alkylidenecycloproparene 5 in low yield.The tricarbonylchromium complex of cyclopropaanthracene (10) is accessible via bis-hydro-desilylation of 9.Its X-ray structure is also reported.All attempts to synthesize a tricarbonylchromium complex of benzocyclopropene (11a) failed.