Ferrocenophanes 1,3-dithia

Elimination of hydrogen halides from dihalogenoorganylboranes by reaction with ferrocene-1,1 -dithiol resulted in l,3-dithia-2-boryl[3]ferrocenophanes.170 These borylferrocenophanes were air sensitive, but were characterized by NMR, MS, and elemental analysis.170 A series of l,3-dibora-2-X-[3]fer-rocenophanes (X=S, Se, Te) were prepared and characterized and the crystal structure of [Se N Pr2)BC5Fl4 2Fe] has been reported.171... 

A) in the dithia-ferrocenophane 59 and angles between 97.3 and 99.3° at arsenic one curious feature is a significant difference in C—C bond lengths in the cyclopentadiene rings, with one short (1.407 A) and one long (1.439 A) bond in each ring . ... 

In the case of the l,3-dithia-[3]ferrocenophanes containing platinum in the bridging... 

Typical procedure. l,3-Dithia-[3]ferrocenophan-2-one Fe(CsH4S)2CO 1150 [811] To a solution of Fe(C6H4SLi)2-2THF 1149 (406 mg, 1 mmol) in THF (20 mL) at -78 °C, a solution of triphosgene (0.33 mmol, 98 mg) in THF (5 mL) was added dropwise. After warming to ambient temperature, the solution was decanted off from the precipitated LiCl, filtered through Celite, and concentrated in vacuo. Recrystalhza-tion of the residue from CH2CI2 afforded colored crystals, which decomposed at 194 °C yield 224 mg (82%). 

Ratajczaj A, Krzykawski J (1987) Synthesis of dithia-(l,2)ferrocenophanes and tetrathia-(l,2)Ferrocenophanes by the reactions of l,2-di(hydroxymethyl)ferrocene with alpha, omega, alpha, omega-alkanedithiols. Gazz Chim Ital 117 533-537... 

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