The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 01, 1991
Filed:
Aug. 23, 1989
Applicant:
Inventors:
Kikuo Ataka, Ube, JP;
Masahiko Kohno, Ube, JP;
Assignees:
UBE Industries, Ltd., Ube, JP;
Sankyo Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568592 ;
Abstract
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: