Abstract
Reaction of bridging dicyclopentadienyl disodium E(CH2COCpNa)2 (E = S or NPh, Cp = cyclopentadienyl) with FeCl2 yields thia- and aza-[5]ferrocenophanes E(CH2COCp)2Fe [E = S (1) and NPh (2)]. Treatment of C14H8(CH2SCH2COCpNa)2 (C14H8 = 9,10-anthracenyl) with FeCl2 affords dithia-[12]ferrocenophane C14H8(CH2SCH2COCp)2Fe (3), while similar reaction of C6H4(CH2SCH2COCpNa)2 (C6H4 = 1,4-phenyl) with FeCl2 provides a mixture of dithia-[12]ferrocenophane C6H4(CH2SCH2COCp)2Fe (4) and tetrathia-[12,12]ferrocenophane [C6H4(CH2SCH2COCp)2Fe]2 (5), which are separated easily by column chromatography. These five compounds were characterized by IR and NMR spectroscopic analyses and the structures of 2 and 3 were further confirmed by single crystal X-ray diffraction. The electrochemical behaviors of 1–4 were investigated by cyclic voltammetry. In addition, their fungicidal activities against Alternaria solani, Cercospora arachidicola, Physalospora piricola, and Botrytis cinerea were tested in vitro.
Acknowledgment
This work is supported by the National Natural Science Foundation of China (no. 20721062).