Hydroxyphenylated hydantoins

Details Hydroxyphenylated hydantoins Hydroxyphenylated hydantoins

C - Chemistry, Metallurgy

07

D

260/248, 400/707

C07D 233/76 (2006.01) C07D 233/78 (2006.01) C07D 235/02 (2006.01) C07D 251/04 (2006.01)

Patent

CA 1036601

ABSTRACT New 3-substituted for 3-unsubstituted hydroxyphenyl- ated hydantoins are useful as stabilizers for organic materials. The 3-substituted hydroxyphenylated hydantoins are prepared by reacting 3-unsubstituted hydroxyphenylated hydan- toins with corresponding halogen derivatives. The 3-unsubs- tituted hydroxyphenylated hydantoins in their turn are pre- pared by reacting hydroxyphenylated carboxylic acid esters with alkalicyanid and ammonium carbonate.

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