The preparation of (5-aryl-3-isoxazolyl)-ferrocenes from dilithiated acetylferrocene oxime and aromatic esters

Article abstract of DOI:10.1016/S0022-328X(96)06867-2

Acetylferrocene oxime was dilithiated with excess lithium diisopropylamide and the resulting C(α),O-dilithiated oxime was condensed at the carbanion-type center with aromatic esters to yield C-acylated intermediates that were quenched and acid-cyclized to