A Level chemistry mechanisms
I’m stuck on this question I’ve been given and would appreciate any help, I have worked out answers through doing the mechanisms for electrophilic addition but I’ve no idea if they’re correct.
The answers I have are:
1-bromopent-3-ene
2-bromopent-3-ene
3-bromopent-1-ene
4-bromopent-1-ene
The answers I have are:
1-bromopent-3-ene
2-bromopent-3-ene
3-bromopent-1-ene
4-bromopent-1-ene
(edited 3 years ago)
Original post by GeorginaHolmes
1-bromopent-3-ene
1-bromopent-4-ene
2-bromopent-3-ene
2-bromopent-4-ene
1-bromopent-4-ene
2-bromopent-3-ene
2-bromopent-4-ene
These names cannot be correct, as the double bond takes priority when numbering the chain.
So would they switch around?
3-bromopent-1-ene
4-bromopent-1-ene
3-bromopent-2-ene
4-bromopent-2-ene
3-bromopent-1-ene
4-bromopent-1-ene
3-bromopent-2-ene
4-bromopent-2-ene
Okay, I think it would be:
5-bromopent-2-ene (minor product)
4-bromopent-2-ene (major product)
3-bromopent-1-ene (major product)
4-bromopent-1-ene (minor product)
The alkene group is named first, so no matter which double bond the bromine is added to you count from the first carbon on which the double bond has formed.
5-bromopent-2-ene (minor product)
4-bromopent-2-ene (major product)
3-bromopent-1-ene (major product)
4-bromopent-1-ene (minor product)
The alkene group is named first, so no matter which double bond the bromine is added to you count from the first carbon on which the double bond has formed.
So they would look like this? (Corresponding names underneath)
Original post by Millymoo24
So they would look like this? (Corresponding names underneath)
Looks right to me!
Ok, thank you for the help 😁
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