METHOD FOR MODIFYING MELAMINE DERIVATIVES

摘要

A method for modifying melamine derivatives which comprises introducing substituents into melamine or N-substituted melamine derivatives to thereby easily give derivatives of the N-substituted melamine derivatives. The above method is characterized by reacting melamine or an N-substituted melamine derivative with an alcohol by heating in the presence of a catalyst mixture of a hydrogenase with a dehydrogenase and hydrogen, or reacting melamine or an Nsubstituted melamine derivative with an alcohol by heating in the presence of a hydrogenase and hydrogen under the addition/coexistence of a metal. Compounds obtained by introducing substituents into amino of melamine derivatives with the use of alcohols in accordance with the above method are widely usable as fine chemical intermediates in a number of fields including agricultural chemicals, drugs, dyes and paints, as well as various resin materials and flame-retardant materials.