2,2′-dilithio-6,6′-dimethylbiphenyl, prepared from optically pure 2,2′-di-iodo-6,6′-dimethylbiphenyl (1) and butyl-lithium in diethyl ether, was found to be stable towards racemisation at –10°C.
T. Frejd and T. Klingstedt, J. Chem. Soc., Chem. Commun., 1983, 1021 DOI: 10.1039/C39830001021
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