Hydroxyphenylated hydantoins

Details Hydroxyphenylated hydantoins Hydroxyphenylated hydantoins

1974-05-14

1976-02-17

Love, Ethel G.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 458N, 2602475R, 260248NS, 260465E, C07D 4932

Patent

active

039391752

ABSTRACT:
New hydroxyphenylated hydantoins are useful as stabilizers for synthetic organic polymeric materials. The new hydroxyphenylated hydantoins may be additionally substituted in the 1,3 and/or 5 positions of the hydantoin ring.
The hydroxyphenylated and 5-substituted hydroxyphenylated hydantoins are generally prepared by reacting hydroxyphenylated ketones or aldehydes with alkali cyanide and ammonium carbonate. Hydroxyphenylated hydantoins substituted in the 1 and/or 3 positions are generally prepared by reacting the 1 and/or 3-unsubstituted hydroxyphenylated hydantoins with the corresponding halogen or dialkylaminomethyl derivatives.

REFERENCES:
patent: 3544623 (1970-12-01), Hansen et al.
patent: 3553258 (1971-01-01), Kaiser et al.
chem. Abstracts 75:141140f.

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