Classify each of the four compounds below as a conjugated, isolated, or cumulated diene.
Classify each of the four compounds below as a conjugated, isolated, or cumulated diene.
Homework Answers
In organic chemistry, the hydrocarbon that contains two carbon – carbon double bonds in a compound is called diene. According to the location of double bonds, diene is classified into 3 types: cumulated diene, conjugated diene and isolated diene.
Cumulated diene contains adjacent double bonds. The double bonds are shared by a single carbon (common) atom.
Example:
Conjugated diene is the compound that contains two double bonds that are separated by a single bond.
Example:
Isolated diene is the compound in which two double bonds are separated by two or more carbon atoms.
Example:
(a)
The compound is as follows:
The two double bonds are separated by one single bond. Therefore, it is a conjugated diene.
Two double bonds are not separated by two or more single bonds. Therefore, it is not an isolated diene.
The double bonds are not shared by a common atom. Therefore, it is not a cumulated diene.
(b)
The compound is as follows:
The double bonds are not separated by a single bond. Therefore, it is not a conjugated diene.
The double bonds are separated by more than one single bond. Therefore, it is an isolated diene.
The double bonds are not shared by a single carbon atom. Therefore, it is not a cumulated diene.
(c)
The compound is as follows:
The double bonds are not separated by a single bond. Therefore, it is not a conjugated diene.
The double bonds are separated by more than one single bond. Therefore, it is an isolated diene.
The double bonds are not shared by a single carbon atom. Therefore, it is not a cumulated diene.
(d)
The compound is as follows:
The two double bonds are separated by one single bond. Therefore, it is conjugated diene.
Two double bonds are not separated by two or more single bonds. Therefore, it is not an isolated diene.
The double bonds are not shared by common atom. Therefore, it is not a cumulated diene.
Ans: Part aThe given compound is identified to be the following type of alkene:
The given compound is identified to be the following type of alkene:
The given compound is identified to be the following type of alkene:
The given compound is identified to be the following type of alkene:
Add Answer to:
Classify each of the four compounds below as a conjugated,
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