5606-25-7Relevant academic research and scientific papers
Method for modifying melamine derivatives
-
, (2008/06/13)
The present invention provides a method for modifying melamine derivatives that can produce N-substituted melamine derivatives by introducing a substituent group to melamine or N-substituted melamine derivatives. The method is characterized by heating melamine or an N-substituted melamine derivative and an alcohol in the presence of a mixed catalyst comprising a hydrogenation catalyst and a dehydrogenation catalyst and hydrogen to allow reaction or heating melamine or an N-substituted melamine derivative and an alcohol in the presence of a hydrogenation catalyst and hydrogen with addition/coexistence of a metal to allow reaction. The compound groups obtained by introducing a substituent group to the amino group of melamine derivative with an alcohol by the method of the present invention can be used widely as intermediates of fine chemicals such as various agricultural chemicals, medicines, dyes, paints, etc. and as various resin materials and flame retardant materials.
Method for modifying 1,3,5-triazine derivatives
-
, (2008/06/13)
PCT No. PCT/JP96/03762 Sec. 371 Date Jun. 22, 1998 Sec. 102(e) Date Jun. 22, 1998 PCT Filed Dec. 24, 1996 PCT Pub. No. WO97/24338 PCT Pub. Date Jul. 10, 1997A method for modifying 1,3,5-triazine derivatives characterized by heating and reacting a 1,3,5-triazine derivatives having at least one amino or mono-substituted amino group on a carbon atom or atoms on its ring with an alcohol in the presence of a metal catalyst and a hydrogen atom to introduce an alkyl group or an alkenyl group into each amino or mono-substituted amino group; another method for modifying 1,3,5-triazine derivatives characterized by heating and reacting a 1,3,5-triazine derivatives having at least one amino or mono-substituted amino group on a carbon atom or atoms on its ring with a dihydric alcohol in the presence of a metal catalyst and a hydrogen atom to introduce an alkyl group having a hydroxyl group into each amino or mono-substituted amino group; and 1,3,5-triazine derivatives obtained by the methods. The various modified sustituted 1,3,5-triazine derivatives thus produced are generally obtained as a mixture. These derivatives can be isolated as compounds having high-purity by a normal separation method for organic compounds, and the compounds are usable in the various applications mentioned in the specification.
Method of alkylating triazine derivatives
-
, (2008/06/13)
PCT No. PCT/JP95/00881 Sec. 371 Date Feb. 7, 1997 Sec. 102(e) Date Feb. 7, 1997 PCT Filed May 9, 1995 PCT Pub. No. WO95/30662 PCT Pub. Date Nov. 16, 1995The object of the present invention is to provide a method for producing substituted-1,3,5-triazine derivatives at high yield, in which at least one of carbon atoms in the ring thereof is substituted by a secondary amine group having at leat one of alkyl groups. The method of the present invention is a method for alkylation of 1,3,5-triazine derivatives, characterized by reacting 1,3,5-triazine derivatives (melamines, melamine derivatives, various kinds of guanaminde derivatives, etc.) which has at least one or more amino groups or mono-substituted amino groups on carbon atom of the ring thereof, with aldehydes or ketones alcohols in the presence of a catalyst of a metal of group VII and/or group VIII in the periodic table and a hydrogen-containing gas to alkylate said at least one of amino groups or mono-substituted amino groups. These derivatives are widely used as intermediates of fine chemicals such as agricultural chemicals, medications, dyestuffs, paints and the like and are widely used resin materials and as flame-retardant materials.
