174535-49-0Relevant academic research and scientific papers
Ferrocene compounds XXII. Synthesis and reactions of some ferrocenylthiaaliphatic acids
Lisac,Rapic
, p. 215 - 220 (2007/10/03)
Condensation of several ferrocenylcarbinols (1) with thioglycolic acid, β-mercaptopropionic acid or ss-mercaptoisobutyric acid in the presence of trifluoroacetic acid have given the corresponding ferrocenylthiaaliphatic acids (2-4) with 65-99% yields. Instead of the expected intramolecularly cyclized products, reactions of the acids 2-4 with trifluoroacetic anhydride give 23-30% of the 1,2-disubstituted 1,2-diferrocenylethanes (8), 15-26% of trimeric species (9), and about 30% of oligomeric species (10). The mechanism of the reactions is discussed.
