Uses
Ferrocenecarboxylic acid is used to esterify complex mixtures of phenols and alcohols for analysis by GCMS. It is an important raw material and intermediate used in Organic Synthesis, Pharmaceuticals, Agrochemicals and Dyestuff.
Purification Methods
It crystallises as yellow crystals from pet ether (m 225-230odec), CHCl3 (m 208.5odec), toluene/pet ether (m 195-205odec), or aqueous ethanol. [Matsue et al. J Am Chem Soc 107 3411 1985.] The acid chloride m 49o crystallises from pentane, and has max at 458nm [Lau & Hart J Org Chem 24 280 1959]. The methyl ester crystallises from aqueous MeOH with m 70-71o. The anhydride has m 143-145o when recrystallised from pet ether [Acton & Silverstein J Org Chem 24 1487 1959]. The amide has m 168-170o when crystallised from CHCl3/Et2O or m 167-169o when crystallised from *C6H6/MeOH. [Arimoto & Haven J Am Chem Soc 77 6295 1955, Benkeser et al. J Am Chem Soc 76 4025 1954.] [Beilstein 16 IV 1807.]