Buchner ring expansion
= Buchner ring expansion
{c}
<Carbene> addition to an aromatic bond gives a cyclopropane-containing intermediate that can open to a seven-membered cycloheptatriene.
= Buchner ring expansion
{c}
<Carbene> addition to an aromatic bond gives a cyclopropane-containing intermediate that can open to a seven-membered cycloheptatriene.