| 摘要 |
6-Alkylthio-2,4-diamino-1,3,5-triazines of formula I <IMAGE> (I) wherein R1 is C1-C6alkyl and R2, R3, R4 and R5 are each independently hydrogen, C1-C6alkyl, allyl or C1-C6alkoxyalkyl, are prepared by reacting 6-chloro-2,4-diamino-1,3,5-triazines of formula II <IMAGE> (II) wherein R2, R3, R4 and R5 are as defined above, with a metal thioalkylate of formula III M(SR1)n wherein R1 is as defined above, n is 1 or 2, and M is an alkali metal if n is 1 or an alkaline earth metal if n is 2, in the presence of a tertiary amine in a two-phase reaction medium consisting of water and an inert, organic, water-immiscible solvent.
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