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Chemistry · Glossary

What is Cyclopropanation?

Definition 27.10 University Chemistry — Year 3 · Chapter 27 — Radicals, Carbenes and Rearrangements

Cyclopropanation is the formation of a cyclopropane by addition of a carbene or carbenoid to a C=C double bond.

Skell’s test: cis-but-2-ene, both methyl groups on the same side, gives with a singlet carbene only cis-1,2-dimethylcyclopropane (both methyl groups on wedges, on the same face of the ring); with a triplet carbene the trans isomer appears too.
Skell’s test: cis-but-2-ene, both methyl groups on the same side, gives with a singlet carbene only cis-1,2-dimethylcyclopropane (both methyl groups on wedges, on the same face of the ring); with a triplet carbene the trans isomer appears too.
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