Process for preparing p-bromophenoxyacetaldehyde dialkylacetal derivatives
申请人:UBE INDUSTRIES, LTD.
公开号:EP0357348B1
公开(公告)日:1994-06-08
US4982008A
申请人:——
公开号:US4982008A
公开(公告)日:1991-01-01
Zaffran,C.; Marichal,E., Bulletin de la Societe Chimique de France, 1970, p. 3523 - 3530
作者:Zaffran,C.、Marichal,E.
DOI:——
日期:——
Process for preparing p-bromophenoxyacetaldehyde dialkylacetal compounds
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.