2-bromo-3-methylbutane , 2-chlorobutane , 1-chloro-2,2-dimethylpropane. Name the haloalkanes which can be prepared in high yield by monohalogenation of an alkane?
1 Answer
We should get good yields of 2-chlorobutane and 1-chloro-2,2-dimethylpropane.
Explanation:
We have to look at the relative reactivity of each type of
The relative reactivities for radical chlorination are 1°:2°:3° = 1:3.9:5.2 (you may have been given slightly different numbers).
The relative reactivities for radical bromination are 1°:2°:3° = 1:82:1640 (you may have been given slightly different numbers).
2-bromo-3-methyl butane
We should expect to get a 9 % yield of 2-bromo-3-methylbutane.
2-chlorobutane
We should expect to get a 72 % yield of 2-chlorobutane.
1-chloro-2,2-dimethylpropane
We should expect to get a 63 % yield of 1-chloro-2,2-dimethylpropane.
Conclusion: We should get good yields of 2-chlorobutane and 1-chloro-2,2-dimethylpropane.