The reactions of cyclopropanes activated by electron-withdrawing groups and electron-donating
groups – donor–acceptor (DA) cyclopropanes – and with alkenyl or alkylidene substituents
has been an area of recent intense research activity. This Cluster contains contributions
from many of the leading research groups in this area, and provides a concise introduction
to the rich ring-opening, ring-expansion, dimerization, and cycloaddition chemistry
of these compounds.
Key words
cyclopropanes - ring opening - cycloaddition - rearrangement - Lewis acids - catalysis