Conversion of alcohols to alkyl bromides using PBr3

by James

Description: Treatment of a primary or secondary alcohol with PBr3 results in alkyl bromides.
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{ 5 comments… read them below or add one }

Debopriyo chakraborty January 24, 2012 at 11:21 am

this is most useful specially for the student of class xi &xii


Roberto Cipriano February 21, 2012 at 1:57 am

Your reaction with PBr3 and the 2ndary alcohol is incorrect, I believe. Shouldn’t that be a Br instead of an OH in the product?


james February 22, 2012 at 5:07 pm

Yes, thanks for pointing out the error! fixed!


alex jones December 11, 2013 at 1:27 am

will this reaction occur if it’s a tertiary alcohol?


Trenten Witte July 6, 2015 at 7:52 pm

I don’t believe so due to the fact that the reaction proceeds through SN2. In order to convert a tertiary alcohol into an alkyl halide, it is better to use SOCl2 or SOBr2. Correct me if I am wrong.


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