Process for preparing p-bromophenoxyacetaldehyde dialkylacetal c

Details Process for preparing p-bromophenoxyacetaldehyde dialkylacetal c Process for preparing p-bromophenoxyacetaldehyde dialkylacetal c

1989-08-23

1991-01-01

Gray, Bruce

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C07C 4330

Patent

active

049820087

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:

REFERENCES:
patent: 3780104 (1973-12-01), Teach
patent: 3890134 (1975-06-01), Teach
patent: 4845097 (1989-07-01), Matsumoto et al.
Niwa et al, Development of (Phenoxyphenoxy) and (Benzylphenoxy)allanaldoxime O-Ethers as Potent Insect Juvenile Hormone Mimics and Their Quantitative Structure-Activity Relationship, J. Agric. Food Chem., 1988, 36, pp. 378-384.

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