Process for preparing 5-arylhydantoin

Details Process for preparing 5-arylhydantoin Process for preparing 5-arylhydantoin

1991-09-03

1992-06-30

Brust, Joseph Paul

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D33378

Patent

active

051264595

ABSTRACT:
A process for preparing a 5-arylhydantoin having the formula (II): ##STR1## which comprises: reacting methyl 2-hydroxy-2-methoxyacetate, urea and an aryl compound having the formula (I): ##STR2## in the presence of an acid. According to the process, the 5-arylhydantoin which is a very effective intermediate for preparing D-arylglycines can be easily prepared from inexpensive raw materials in a high purity.

REFERENCES:
patent: 4230869 (1980-10-01), Yoneda et al.

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