Abstract:
Disclosed is a method for producing alkoxycarbonylamino triazines of formula (I) by reacting diaminotriazines or triaminotriazines with cyclic carbonic acid esters and optional subordinate quantities of acyclic carbonic acid esters in the presence of an alcohol and an alkaline alkanol or alkaline-earth alkanol as a base. In said formula, Y represents hydrogen, C1-C4 alkyl, phenyl that is optionally substituted by C1-C4 alkyl, C1-C4 alkoxy, or halogen, or a radical of formula NR R while R , R , R , R , R , and R independently represent hydrogen or a radical of formula COOX or X, wherein X represents C1-C13 alkyl, the carbon skeleton of which can be interrupted by 1 or 2 oxygen atoms having the function of ether and/or substituted by hydroxy, or C3-C6 alkenyl provided that at least one of the radicals R to R in formula (I) represents COOX, or at least one of the radicals R to R in said formula represents COOX if Y represents NR R .
Abstract:
The invention relates to a process for removing salts from an alkanolic reaction mixture which is obtained in the preparation of alkoxycarbonylaminotriazines and comprises at least one alkoxycarbonylaminotriazine, at least one cyclic and/or acyclic carbonic ester, at least one C 1 -C 13 -alkanol which optionally comprises one or two oxygen atoms as ether bonds and is optionally substituted by C 1 -C 4 -alkyl and/or hydroxyl, and also at least one alkali metal alkoxide or alkaline earth metal alkoxide, with or without melamine and with or without catalyst, in which salts are removed from the reaction mixture by ion exchange over a cation exchanger and/or anion exchanger.
Abstract:
The invention relates to a process for preparing polymethylolated melamine and polymethylolated melamine compounds polyetherified with alkanol, wherein the methylolation reaction is carried out in a kneading reactor.
Abstract:
Disclosed is a method for producing alkoxycarbonylamino triazines of formula (I) by reacting diaminotriazines or triaminotriazines with cyclic carbonic acid esters and optional subordinate quantities of acyclic carbonic acid esters in the presence of an alcohol and an alkaline alkanol or alkaline-ear th alkanol as a base. In said formula, Y1 represents hydrogen, C1-C4 alkyl, phenyl that is optionally substituted by C1-C4 alkyl, C1-C4 alkoxy, or halogen, or a radical of formula NR5R6 while R1, R2, R3, R4, R5, and R6 independently represent hydrogen or a radical of formula COOX or X, wherein X represents C1-C13 alkyl, the carbon skeleton of which can be interrupted by 1 or 2 oxygen atoms having the function of ether and/or substituted by hydroxy , or C3-C6 alkenyl provided that at least one of the radicals R1 to R4 in formula (I) represents COOX, or at least one of the radicals R1 to R6 in sai d formula represents COOX if Y1 represents NR5R6.