Definition of cyclopentadiene in US English:
cyclopentadiene
noun ˌsiklə-ˌsīkləˌpentəˈdīēn
A colorless toxic liquid derived from the distillation of coal tar, insoluble in water, soluble in alcohol, and used in the manufacture of insecticides and resins.
Example sentencesExamples
- Sodium methylate and then cyclopentadiene are added, and ferrocene ultimately precipitates out of the solution.
- The cyclopentadienes are prepared by reaction with hydrocarbylating agents or alcohols.
- Phenyl-substituted cyclopentadienes are proved to form phenylated pyrylium cations in the presence of silver perchlorate by insertion of an oxygen atom into the cyclopentadiene-ring.
- Nucleophiles can be added, leading to coordinated cyclopentadienes, which may be liberated by oxidation and used in further synthesis.