FERROCENOPHANES WITH PHOSPHORUS AND ARSENIC AS THE BRIDGING ATOMS: SYNTHESIS AND SOME REACTIONS. A NEW ROUTE TO FERROCENYLLITHIUM REAGENTS

Article abstract of DOI:10.1016/S0022-328X(00)94410-3

(1,1'-Ferrocenediyl)phenyl-phosphine and -arsine and (1,1'-ferrocenediyl)-methylphosphine have been prepared by the reaction of 1,1'-dilithioferrocenetetramethylethylenediamine with the respective RPCl2 and PhAsCl2.They react at the Group V bridging atom with sulfur and with reactive metal carbonyl species without disruption of the ferrocenophane system.Organolithium reagents react with these compounds to open the ring and give 1-lithio-1'-phosphino- or arsino-ferrocenes.Some reactions of these new lithium reagents are reported.