What is the name of this alkene
CH3CH2CH(BR)CH=C(BONDED TO A METHYL ON ONE SIDE AND AN ETHYL ON THE OTHER)
To name the alkene, we need to follow the IUPAC naming rules for organic compounds.
Step 1: Identify the longest carbon chain containing the double bond. In this case, the longest chain is four carbons.
Step 2: Number the carbon atoms in the chain in a way that gives the double bond the lowest possible number. Since the double bond starts at the second carbon in the chain, we will number the carbons as follows:
CH3-CH=CH-CH(Br)-C(CH3)(C2H5)
Step 3: Identify and name the substituents attached to the carbon chain. In this case, we have a methyl group (CH3) attached to the second carbon and an ethyl group (C2H5) attached to the third carbon.
Step 4: Combine the substituent names with the parent chain name. The parent chain is but, since it contains a double bond, we use the suffix "-ene" to indicate its presence.
Putting it all together, the name of the alkene is 2-methyl-3-ethylbutene.