Method for preparing 2-hydroxy-6-ureidocarbonyl naphthalene...

Details Method for preparing 2-hydroxy-6-ureidocarbonyl naphthalene... Method for preparing 2-hydroxy-6-ureidocarbonyl naphthalene...

2006-04-18

2006-04-18

O'Sullivan, Peter (Department: 1621)

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

Organic compounds

Nitriles

C560S021000, C564S050000

Reexamination Certificate

active

07030261

ABSTRACT:
Disclosed is a method for preparing a 2-hydroxy-6-ureidocarbonyl naphthalene derivative. The method comprises the step of reacting 2-hydroxy-6-aminocarbonyl naphthalene and a isocyanate in an organic solvent at a temperature of 90–200° C. According to the present invention, 2-hydroxy-6-ureidocarbonyl naphthalene derivative can easily be obtained within relatively short time and high yield.

REFERENCES:
patent: 0 765 858 (1997-04-01), None

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