Английская Википедия:4-Vinylcyclohexene

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4-Vinylcyclohexene is an organic compound consisting of a vinyl group attached to the 4-position of the cyclohexene ring. It is a colorless liquid. Although chiral, it is used mainly as the racemate. It is a precursor to vinylcyclohexene dioxide.[1]

Production

It is produced by buta-1,3-diene dimerization in a Diels-Alder reaction.[2][1] The reaction is conducted at 110 - 425 °C at pressures of 1.3 - 100 MPa in the presence of a catalyst. A mixture of silicon carbide and salts of copper or chromium comprises the catalyst. A competing product is 1,5-cyclooctadiene.

1,3-Butadiene undergoes a Diels-Alder cycloaddition reaction to form 4-vinylcyclohexane.

Safety

4-Vinylcyclohexene is classified as a Group 2B carcinogen by the IARC ("possibly carcinogenic to humans").[3]

References

Шаблон:Reflist

  1. 1,0 1,1 Шаблон:Ullmann
  2. Шаблон:Cite book
  3. Ошибка цитирования Неверный тег <ref>; для сносок iarc не указан текст