57496-20-5Relevant articles and documents
Deracemization of 5-(4-hydroxyphenyl)-5-phenylhydantoin (HPPH): Practical synthesis of (-)-(S)-HPPH
Riedner, Jens,Vogel, Pierre
, p. 2657 - 2660 (2007/10/03)
In the presence of 10% NaOH in boiling MeOH enantiomerically enriched HPPH is racemized. This permits the deracemization of HPPH in the presence of brucine, giving enantiomerically pure (-)-(S)-HPPH [(-)-(S)-5-(4-hydroxyphenyl)- 5-phenylhydandoin].