ORGLIST: Mechanism of 5,5-diphenylhydantoin

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From: antonio regla (areglac$##$yahoo.com)
Date: Tue Feb 22 2000 - 12:15:55 EST

Dear List Members:
I am looking for the mechanism of the formation of
5,5-diphenylhidantoin from the reaction of benzil plus
urea under basic conditions. I have seen one mechanism
in an old lab manual, and it doesn't seem very likely
to me. Some of the steps seem unreasonable, I get the
feeling it is one of those mechanism proposed by
someone pressed for time. I would appreciate if
someone could point me in the right direction to find
information on a more reasonable mechanism. Thank you
all for your help.
Sincerely,
J. Antonio Regla
Chemistry Professor
School of Pharmacy
Universidad Autonoma del Estado de Morelos
Cuernavaca, Mexico
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