Process for preparing 5-(4-hydroxyphenyl)hydantoin

Details Process for preparing 5-(4-hydroxyphenyl)hydantoin Process for preparing 5-(4-hydroxyphenyl)hydantoin

1978-03-16

1980-10-28

Rotman, Alan L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

260444, C07D23378

Patent

active

042308690

ABSTRACT:
A process for preparing 5-(4-hydroxyphenyl)hydantoin by reacting glyoxylic acid, urea and phenol in an aqueous medium in the presence of an acid at an elevated temperature. The hydantoin of high purity can be readily prepared in good yields.

REFERENCES:
patent: 2687416 (1954-08-01), Persch et al.
patent: 3439048 (1969-04-01), Biller
patent: 3860631 (1975-01-01), Gleason et al.
Ben-Et et al., Chemical Communications, 1969, p. 376.
Morikawa et al., Chem. Abst., 1971, vol. 74, No. 100043n.
Ware, Chem. Revs., 1950, vol. 46, pp. 414-415.
Noller, Chemistry of Organic Compounds, Sanders, Philadelphia, 1965, p. 555.
Harries et al., Ber. 1900, pp. 3418-3420.

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