Reactions of Alkenes and Alcohols - Worked Example
Let's check out this question.
The product that we want is 1-chloropropane.
The functional groups mentioned in the options are propene and propan-1-ol.
Option A - chlorine gas with propene in the dark
This is an electrophilic addition of propene to form 1,2-dichloropropane, which is not the product we want.
Option B - propan-1-ol with dilute NaCl(aq)
There is no reaction between alcohol and dilute NaCl.
Option C - propan-1-ol with PCl5
This is a nucleophilic substitution of propan-1-ol to form 1-chloropropane.
Hence option C is our answer to this question.
This reaction requires anhydrous PCl5 at room temperature.
We can also use anhydrous SOCl2 at room temperature for the same conversion.
Option D - propene with dilute HCl(aq)
There is no reaction between alkene and dilute HCl.
Topic: Alcohol, Organic Chemistry, A Level Chemistry, Singapore
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