Barium-containing alkoxylation systems are used as catalysts for the alkoxylation of alcohols of all classes. The reaction is carried out at temperatures of from about 90 to about 260°C to yield an alkoxylation product The products obtained have very narrow adduct distribution with low levels of by-products and unreacted free alcohols. Several classes of materials which promote these reactions are disclosed.
含
钡烷氧基化体系可用作各类
醇类烷氧基化的催化剂。反应在约 90 至约 260°C 的温度下进行,生成烷氧基化产物。所得产物的加成物分布非常窄,副产物和未反应的游离醇含量很低。已公开了几类可促进这些反应的材料。