alkeeneiden
Alkeeneiden, the Finnish term for alkenes, denote a class of unsaturated hydrocarbons defined by the presence of one or more carbon–carbon double bonds. They are fundamental building blocks in organic chemistry and occur in a wide range of natural and industrial contexts. For acyclic alkeeneiden, the general formula is CnH2n (n ≥ 2). Cycloalkenes have the formula CnH2n−2. The carbon–carbon double bond restricts rotation, giving rise to geometric isomerism (cis/trans or E/Z) in many alkeeneiden, especially when each carbon of the double bond bears two different substituents.
Chemically, alkeeneiden are more reactive than alkanes due to the π bond. They readily undergo addition reactions
Occurrence and production are broad. Ethene (ethylene) and propene (propylene) are among the most important alkeeneiden
In summary, alkeeneiden are a key class of reactive hydrocarbons with a characteristic carbon–carbon double bond,