• Treatment with sodium bis(trimethylsilyl)amide gives the strained, highly reactive alkene cyclopropene. For details and Diels-Alder reactions, see: J. Org. Chem., 61, 6462 (1996).
• Lithiation with LDA in THF at -78o generatesɑ-chloroallyllithium which can be ɑ-alkylated with primary bromides in high yield. Displacement of the resulting allylic chloride with a dialkyl cuprate to give, stereoselectively, an (E)-alkene, has been used in a pheromone synthesis: J. Org. Chem., 45, 1504 (1981).