Regioselective lithiations of di(2-thienyl)methane: A clean kinetic and thermodynamic control in lithiation
Di(2-thienyl)methane is regioselectively lithiated at either 5-position of the thienyl group or the central methylene carbon depending on base, solvent, additive, and temperature; the results give a novel example of kinetic and thermodynamic control in li
Highly regioselective lithiation of inter-ring carbon of bis(thien-2yl)methane: a general meso-elaboration protocol
Bis(thien-2yl)methane is regioselectively lithiated at the inter-ring methylene carbon using dimsyl anion in THF at 0 °C; quenching with appropriate electrophile furnishes meso-elaborated derivatives, exclusively with synthetic advantage.
Singh, Kamaljit,Sharma, Amit
experimental part
p. 3682 - 3686
(2010/07/04)
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