Which of the following compounds undergoes an S_N2 reaction most readily?

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Question: Which of the following compounds undergoes an S_N2 reaction most readily?

Options:

Correct Answer: 1-bromopropane

Solution:

1-bromopropane undergoes S_N2 reactions most readily due to less steric hindrance compared to secondary and tertiary halides.

Which of the following compounds undergoes an S_N2 reaction most readily?

Which of the following compounds undergoes an S_N2 reaction most readily?

Step 1: Understand what an S_N2 reaction is. It is a type of chemical reaction where one molecule replaces another in a single step.
Step 2: Identify the types of compounds involved. In this case, we are comparing 1-bromopropane with secondary and tertiary halides.
Step 3: Recognize that steric hindrance refers to how crowded a molecule is. More crowded molecules are harder for the S_N2 reaction to occur.
Step 4: Note that 1-bromopropane is a primary halide, meaning it has less steric hindrance compared to secondary and tertiary halides.
Step 5: Conclude that because 1-bromopropane has less steric hindrance, it can undergo S_N2 reactions more readily than the other types of halides.

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