申请人:UBE Industries, Ltd.
公开号:US04982008A1
公开(公告)日:1991-01-01
There is disclosed a process for preparing a p-bromophenoxyacetaldehyde dialkylacetal derivative represented by the formula: ##STR1## wherein R.sup.1 and R.sup.2 each represent a hydrogen atom or a lower alkyl group and R.sup.3 represents an alkyl group having 1 to 6 carbon atoms, which comprises reacting a bromine to a phenoxyacetaldehyde dialkylacetal represented by the formula: ##STR2## wherein R.sup.1, R.sup.2 and R.sup.3 have the same meanings as defined above, and then the reaction mixture is treated with an alkali metal hydroxide or alcoholate dissolved in an alcohol represented by the formula: R.sup.3 OH wherein R.sup.3 has the same meaning as defined above.
披露了一种制备p-溴苯氧乙醛二烷基缩醛衍生物的过程,其化学式表示为:其中R.sup.1和R.sup.2分别代表氢原子或低碳基团,R.sup.3代表具有1至6个碳原子的烷基团。该过程包括将溴反应到一个化学式表示为的苯氧乙醛二烷基缩醛中:其中R.sup.1、R.sup.2和R.sup.3的含义与上述定义相同,然后将反应混合物与溶解在具有化学式的醇中的碱金属氢氧化物或醇酸盐处理:其中R.sup.3的含义与上述定义相同。