A simple, convenient and environmentally-friendly method for selective acylation of ferrocene to monoacylferrocene in the presence of Zn metal under solvent-free conditions is described. The protocol requires mild operating conditions, affording higher yields of desired products both with acyl chloride/carboxylic acid within a short reaction time (15–30 min).
GrahamP.V., LindseyR.V., ParshallG.W., PetersonM.L., and WhitmanG.M., J. Am. Chem. Soc., 1957, 79, 3416.
11.
(a) PlazukD., and ZakrzewskiJ., Synthetic Commun., 2004, 34, 99; (b) J. Li, W. Su and J. Lin, J. Chem. Research, 2004, 552.
12.
ChoudharyB.M., ReddyK.S., and KantamM.L., U.S. Patent 6239302, 2001, [Chem. Abstr. 2001, 125, 5704y].
13.
(a) StarkA., MacLeanB.L., and SingerR.D., J. Chem. Soc. Dalton Trans., 1999, 63; (b) J.K.D. Surette, L. Green and R.D. Singer, Chem. Commun., 1996, 24, 2753.
14.
(a) VukicevicR.D., VukicevicM.D., RatokvicZ., and KonstantinovicS.A., Synlett, 1998, 1329; (b) R.D. Vukicevic, M.D. Vukicevic, Z. Ratokvic and S.A. Konstantinovic, Tetrahedron Lett., 1998, 39, 5837.
15.
RanuB.C., JanaU., and MajeeA., Green Chem., 1999, 1, 33.
16.
BertozziF., OlssonR., and FrejdT., Org. Lett., 2000, 2, 1283.
