The synthesis of alkyl- and aryl-substituted 1,3,5-triazines

Abstract

The reaction of chloromethyleneiminium salts with N-cyanoamidines provides a new and versatile route to alkyl- and aryl-substituted 1,3,5-triazines. Variation of substituents in the starting materials allows the synthesis of monoaryl-, diaryl-, alkyl-aryl- and certain mono- and di-alkyl-l,3,5-triazines bearing a variety of other substituents including hydrogen, chlorine and O-, S- and N-radicals. The generally good yields, ready availability of starting materials, and the scope and facility of the reaction make it the method of choice for the synthesis of 1,3,5-triazines with these substitution patterns.