Synthesis of Cyclopropanes via a non-reversible cyclisation.

Synthesis of Cyclopropanes via Conjugate Addition/Cyclisation

Reversible intramolecular cyclisation

Synthesis of Cyclopropanes via carbene addition to alkene.

Synthesis of Cyclopropanes via carbene addition to alkene. (SINGLET CARBENE)

Synthesis of Cyclopropanes via carbene addition to alkene. (TRIPET CARBENE)

Synthesis of Carbene via alpha-elimination

Synthesis of Carbene via decomposition of diazo-compound

Synthesis of Carbene via Simmons-Smith Reaction