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.
- 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.
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