发明名称 |
PROCESS FOR PREPARING P-BROMOPHENOXYACETALDEHYDE DIALKYLACETAL DERIVATIVES |
摘要 |
There is disclosed a process for preparing a p-bromophenoxyacetaldehyde dialkylacetal derivative represented by the formula: <CHEM> wherein R<1> and R<2> each represent a hydrogen atom or a lower alkyl group and R<3> represents an alkyl group having 1 to 6 carbon atoms, which comprises reacting a bromine to a phenoxyacetaldehyde dialkylacetal represented by the formula: <CHEM> wherein R<1>, R<2> and R<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<3>OH wherein R<3> has the same meaning as defined above. e |
申请公布号 |
EP0357348(A3) |
申请公布日期 |
1991.07.17 |
申请号 |
EP19890308636 |
申请日期 |
1989.08.24 |
申请人 |
UBE INDUSTRIES, LTD. |
发明人 |
ATAKA, KIKUO UBE RESEARCH LABORATORY;KOHNO, MASAHIKO UBE RESEARCH LABORATORY |
分类号 |
C07C41/48;C07C43/315;C07C67/00;(IPC1-7):C07C43/315 |
主分类号 |
C07C41/48 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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