Tetrahedron Letters p. 5237 - 5240 (1988)
Update date:2022-08-23
Topics:
Eikema Hommes, N. J. R. van
Bickelhaupt, F.
Klumpp, G. W.
At -90 deg C in THF or similar media bis(trimethylsilyl)dichloromethane 2 reacts with lithium-4,4'-di-tert-butylbiphenyl (LiDBB) or suspensions of freshly sublimed lithium to give the title compound 1 that can bind two equivalents of various electrophiles. 1 has a great propensity for proton abstraction and it is markedly less reactive towards ethyl iodide than (Me3Si)2EtCLi 6.
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