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#Post#: 1873--------------------------------------------------
FRIES REARRANGEMENT
DIR By: chemistry
Date: January 7, 2013, 3:44 am
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WHAT IS THE EFFECT OF ELECTRON WITHDRAWING GROUP IN FRIES
REARRANGEMENT? EXPLAIN WITH EXAMPLE.
#Post#: 1884--------------------------------------------------
Re: FRIES REARRANGEMENT
DIR By: Michel
Date: January 8, 2013, 4:22 am
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No idea :( I am announcing your topic. hopefully someone who
knows the answer will help.
#Post#: 1892--------------------------------------------------
Re: FRIES REARRANGEMENT
DIR By: chaitra
Date: January 8, 2013, 8:12 am
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the yields would be very low or there wouln't be any reaction if
electron withdrawing group is present in the phenolic ester.
this would be clear if you go through the mechanism in the
following link.
HTML http://en.wikipedia.org/wiki/Fries_rearrangement
In the presence of EWG, the carbocation formed cannot bind to
the phenol ring and give the desired product.
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