申请人:Dynamit Nobel Aktiengesellschaft
公开号:US04039538A1
公开(公告)日:1977-08-02
Process for the preparation of tris-(halophenoxy) -1,3,5-triazine of formula I ##STR1## wherein R.sub.1, R.sub.2, and R.sub.3 is each a phenoxy substituent having a 0-2 alkyl groups, and 0-2 halo alkyl groups, and has 1-5 halogen atoms which comprises contacting cyanuric acid chloride with alkali phenolate of the formulae R.sub.1 Me, R.sub.2 Me and R.sub.3 Me, wherein Me is alkali metal, and wherein said formulae can be identical or different, in the presence of alkylene diol monoalkyl ether, e.g. methyl or ethyl cellosolve. The ethers are good solvents for the phenolates. The products are used as flame-proofing agents for plastics.
制备式I的三(卤苯氧基)-1,3,5-三嗪的方法,其中R₁、R₂和R₃分别是具有0-2个烷基基团和0-2个卤代烷基基团的苯氧基取代物,并且具有1-5个卤素原子,包括将异氰酸酰氯与具有式R₁Me、R₂Me和R₃Me的碱苯酚反应,其中Me是碱金属,所述式可以相同也可以不同,在烷基二醇单烷基醚的存在下,例如甲基或乙基赛洛索。醚类物质是苯酚的良好溶剂。该产品可用作塑料的阻燃剂。