Cycloalkenes
A simple cycloalkene, cyclopentene .
Structural formula of cyclopentadiene .
Cycloalkenes are alkenes whose molecules are ring-shaped. Like all alkenes, they have a double bond between two carbon atoms in the molecule.
Manufacturing
Cycloalkenes are mostly produced by elimination reactions , e.g. B. from cycloalkanols through the acid-catalyzed elimination of water. The ring-closing metathesis of α, ω-dialkenes also gives cycloalkenes.
Reactions
As with all alkenes, addition reactions can easily take place on the double bond of cycloalkenes .
The polymerization of cycloalkenes is usually preceded by a metathesis , more precisely a ring-opening metathesis . Only then does the actual polymerization take place.
Individual evidence
- ↑ Ivan Ernest: Binding, Structure and Reaction Mechanisms in Organic Chemistry . Springer-Verlag, 1972, ISBN 3-211-81060-9 , pp. 161-183.
- ^ MD Lechner, K. Gehrke, EH Nordmeier: Makromolekulare Chemie , 4th edition, Birkhäuser Verlag, 2010, ISBN 978-3-7643-8890-4 , pp. 99-100.
Web links
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