What is the major product of the reaction of 2-methylpropene with HBr?
Practice Questions
1 question
Q1
What is the major product of the reaction of 2-methylpropene with HBr?
2-bromopropane
1-bromopropane
3-bromopropane
2-bromo-2-methylpropane
The major product is 2-bromopropane due to Markovnikov's rule, where the bromine adds to the more substituted carbon.
Questions & Step-by-step Solutions
1 item
Q
Q: What is the major product of the reaction of 2-methylpropene with HBr?
Solution: The major product is 2-bromopropane due to Markovnikov's rule, where the bromine adds to the more substituted carbon.
Steps: 7
Step 1: Identify the reactant, which is 2-methylpropene. This is an alkene with a double bond.
Step 2: Recognize that HBr (hydrobromic acid) will react with the double bond in 2-methylpropene.
Step 3: Apply Markovnikov's rule, which states that when HX (like HBr) adds to an alkene, the hydrogen (H) will attach to the carbon with more hydrogen atoms already (the less substituted carbon).
Step 4: Determine the structure of 2-methylpropene. It has a double bond between the first and second carbon atoms.
Step 5: Identify the two carbon atoms involved in the double bond: one is more substituted (the second carbon) and the other is less substituted (the first carbon).
Step 6: According to Markovnikov's rule, the hydrogen from HBr will attach to the first carbon (less substituted), and the bromine (Br) will attach to the second carbon (more substituted).
Step 7: Write the product formed from this reaction, which is 2-bromopropane.
