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 The doubly unsaturated cyclic hydrocarbon cis, cis-1,5-cyclooctadiene (COD) is a colorless liquid with a pungent odor and a boiling point of 151°C.
COD is formed by the dimerization of butadiene.
COD is an important starting material for synthesis of cyclic C8 compounds. By the use of appropriate reaction engineering, chemical reactions can be carried out selectively at one or both of the double bonds.
- thus selective hydrogenation can be used to produce cyclooctene, the monomer of polyoctenamer.
- bromination produces an effective flame retardant for plastics.
- COD also serves in the fragrance industry for production of fragrances with an earthy note.
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