名称:
A novel [6]ferrocenophane containing a N–Si–C–C–Si–N bridge, in equilibrium by ring-opening with an 1,1 ′ -diaminoferrocene derivative
摘要:
The reaction of 1,1'-diaminoferrocene 1 with 1,2-bis(chlorodimethylsilyl)ethane in the presence of triethylamine leads to the ferrocene derivative 5 bearing in 1'-position the amino group and in F-position an azadisilacyclopentyl ring. Complex 5 is shown to be in equilibrium with the 1,6,2,5-diazadisila-[6]ferrocenophane 6. Both complexes 5 and 6 were characterised by X-ray structural analysis, and in solution by H-1, C-13 and Si-29 NMR spectroscopy. (C) 2004 Elsevier B.V. All rights reserved.