| 摘要 |
A process for the preparation of substituted amino-diaryl triazines comprising reacting cyanuric chloride with a substituted amine NH(R,R<1>) in substantially equimolar amounts in an anhydrous aromatic hydrocarbon first at low temperature, and subsequently heating the resulting mixture to convert the remaining cyanuric chloride and amine hydrochloride, submitting the resulting compound to a Friedel-Crafts reaction wiht an appropriate aryl hydrocarbon, working up the reaction mixture by adding water and an organic solvent that is substantially water-immiscible, separating, drying and concentrating the solvent phase, isolating the desired compound as an adduct with an appropriate solvent, and decomposing subsequently the adduct to obtain the substituted amino-diaryl triazine in pure form. |
