Donor-Acceptor Cyclopropanes as Three-Carbon Components in a[4+3]Cycloaddition Reaction with 1,3-Diphenylisobenzofuran

摘要

Substituted cyclopropanes have found broad application in modern organic synthesis owing to the unique reactivity of the cyclopropane moiety.Cyclopropanes can often be considered as three-carbon analogues of C=C bonds.For example,alkenes and cyclopropanes react with strong elec-trophiles and various radicals.Both undergo the addition of hydrogen and can be oxidized at the a position.