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Bridged ferrocenes. 12. Metalation and subsequent reactions of ferrocene derivatives with two or three trimethylene bridges

Journal Article · · Organometallics; (United States)
DOI:https://doi.org/10.1021/om00121a020· OSTI ID:6800589
Reaction of 1,1',2,2'-bis(trimethylene)ferrocene, I, 1,1',3,3'-bis(trimethylene)ferrocene, II, and 1,1',2,2',4,4'-tris(trimethylene)ferrocene, III, with n-butyllithium (n-BuLi) and N,N,N',N'-tetramethyl-ethylenediamine (TMEDA) or potassium tert-butoxide (KO-t-Bu) gave metal derivatives which were converted to the corresponding mono- and dicarboxylic acids and their methyl esters and in the case of III to the 3,3'-dibromo derivative. With a few modifications due to the peculiarities of the individual compounds, the explanation for the selectivity of the metalation reactions is essentially that given for the metalation of 1,1'-trimethyleneferrocene, IV. The crystal structure of the dibromide was determined. 12 references, 2 figures, 2 tables.
Research Organization:
Brookhaven National Lab., Upton, NY
DOE Contract Number:
AC02-76CH00016
OSTI ID:
6800589
Journal Information:
Organometallics; (United States), Journal Name: Organometallics; (United States) Vol. 4:2; ISSN ORGND
Country of Publication:
United States
Language:
English