I have to draw the compound 3 methyl 1-hexene.
This is what I've got:
CH
CH=CH-CH-CH-CH-CH-CH
I know there should be some numbers attached to the CH's, but I dont' know where they should be and what they should be. What are the rules concerning numbers? How do you know where to put them? Thank you for your help!
First, you have drawn heptene since you have 7 carbons in a row.
Hexene is a six carbon chain. Draw that and put the double bond at the first carbon. That's the 1.
CH2=CH-CH2-CH2-CH2-CH3
Begin numbering so that the longest chain has the double bond AND that the double bond is the smallest number. Then on carbon #2, replace the H with a CH3. That will be 2-methyl-1-hexene. You may want to count the bonds. Each C should have 4 bonds, each H should have 1 bond.
When naming organic compounds, such as 3-methyl-1-hexene, numbers are used to indicate the position or location of substituent groups on the main carbon chain or backbone. In this case, the compound contains a methyl group (CH3) attached to the third (3) carbon atom of the main chain, which is a hexene (six-carbon) chain.
To correctly draw the compound, you should indicate the location of the methyl group by placing the number 3 on the corresponding carbon atom on the main chain. Here is the correct structure for 3-methyl-1-hexene:
CH3
|
CH2=CH-CH2-CH2-CH2-CH3
In this structure, the "CH3" represents the methyl group bonded to the third carbon atom, and the "CH2" represents the remaining carbon atoms of the hexene chain.
Overall, when you see a number in a compound name like "3-methyl-1-hexene," it indicates the attachment of a substituent at that specific position on the main carbon chain.