申请人:The Dow Chemical Company
公开号:US05264613A1
公开(公告)日:1993-11-23
A process for preparing carboxylic acid esters of of the formula X--(COOCH.sub.2 A).sub.n wherein A is the residue of a substituted or unsubstituted 3- or 4-benzocyclobutene compound, X is an n-valent organic bridging group, and n is 2,3, or 4, comprises reacting a substituted or unsubstituted 3- or 4-hydroxymethylbenzocyclobutene compound with a compound of the formula X--(COY).sub.n, wherein X is an n-valent organic bridging group and Y is Cl or Br. Esters of inorganic acids of the formula X'(OCH.sub.2 A).sub.n wherein X' is a residue of an inorganic acid halide, n is 2 or 3, and A is the residue of a substituted or unsubstituted 3- or 4-benzocyclobutene compound, are prepared by reacting an inorganic halide of the formula X'Y.sub.n, wherein Y is Br or Cl, with a substituted or unsubstituted 3- or 4-hydroxymethylbenzocyclobutene compound. Biscarbonates of the formula X"[OC(.dbd.O)CH.sub.2 A].sub.2 wherein X" is the residue of a diphenol are prepared by reaction between a bis(halocarbonyl) compound of the formula X"[OC(.dbd.O)Y].sub.2, wherein Y is Cl or Br, and a substituted or unsubstituted 3- or 4-hydroxymethylbenzocyclobutene compound. The resulting esters are useful for making resins.
制备的羧酸酯的方法为 X--(COOCH.sub.2 A).sub.n 公式中 A 是取代或未取代的3-或4-苯并环丁烯化合物的残基,X 是 n-价有机桥联基,n 为2、3或4,包括将取代或未取代的3-或4-羟甲基苯并环丁烯化合物与公式 X--(COY).sub.n 反应,其中 X 是 n-价有机桥联基,Y 是 Cl 或 Br。通过将公式 X'Y.sub.n 中 Y 为 Br 或 Cl 的无机卤化物与取代或未取代的3-或4-羟甲基苯并环丁烯化合物反应,制备了公式 X'(OCH.sub.2 A).sub.n 中 X' 为无机酸卤化物残基,n 为2或3,A 为取代或未取代的3-或4-苯并环丁烯化合物残基的酯类。通过在公式 X"[OC(.dbd.O)Y].sub.2 中 Y 为 Cl 或 Br 的双(卤代羰基)化合物与取代或未取代的3-或4-羟甲基苯并环丁烯化合物之间反应,制备了公式 X"[OC(.dbd.O)CH.sub.2 A].sub.2 中 X" 为二酚残基的双碳酸酯。所得的酯类对于制备树脂非常有用。