Process for preparing p-bromophenoxyacetaldehyde dialkylacetal derivatives
申请人:UBE INDUSTRIES, LTD.
公开号:EP0357348A2
公开(公告)日:1990-03-07
There is disclosed a process for preparing a p-bromophenoxyacetaldehyde dialkylacetal derivative represented by the formula:
wherein R¹ and R² each represent a hydrogen atom or a lower alkyl group and R³ represents an alkyl group having 1 to 6 carbon atoms,
which comprises reacting a bromine to a phenoxyacetaldehyde dialkylacetal represented by the formula:
wherein R¹, R² and R³ 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:
R³OH
wherein R³ has the same meaning as defined above.