Unusual carbamate-directed CH-activation at an annulated ferrocenophane framework.
نویسندگان
چکیده
The tetrahydroazepine-annulated [3]ferrocenophane carbamate (4) was synthesized by two different linear routes starting from the readily available α-dimethylamino[3]ferrocenophane-ortho-carbaldehyde rac-6. The carbamate directed lithiation of 4 resulted in a selective attack at a (Cp)C-H bond at the higher substituted "lower" [3]ferrocenophane Cp-ring to eventually yield the respective ester (18) after treatment with ClCO(2)Me.
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عنوان ژورنال:
- Dalton transactions
دوره 40 26 شماره
صفحات -
تاریخ انتشار 2011