Helvetica Chimica Acta p. 2486 - 2501 (1997)
Update date:2022-09-26
Topics:
Borer, Markus
Neuenschwander, Markus
A series of so far unknown bi(cyclopropylidenes) 5 are prepared in a simple one-pot reaction by halogenolithio exchange between 1,1-dibromocyclopropanes 1a-c as well as 1e-i and BuLi at -95°, to give 1-bromo-1-lithiocyclopropanes 2a-c as well as 2e-i, fol
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