In a study of the synthesis of polyiminoimides the preparation of 2‐cyano‐benzoic acid (VI) and some derivatives has been examined. Both the symmetrical (XII) and the asymmetrical (XIII) phthaloyl dichlorides were found to give good yields of (VI) upon ammonolysis with (XII) the more ...
NEW MATERIAL:A 4-(5-alkylpyrimidin-2-yl)benzoic acid-4'-cyano-3'-halogeno phenyl shown by the formula I [R is C1-10 alkyl, -(CH2)m-O-(CH2)p-CH2(m and p are 0-8, m+p<=8); X is halogen]. EXAMPLE:4-(5-Ethylpyrimidin-2-yl)benzoic acid-4'-cyano-3'-fluorophenyl. USE:...
The present invention relates to a process for preparing 3-cyano-2,4-dihalogeno-5-fluoro-benzoic acid, to intermediates for carrying out the process and to processes for preparing these intermediates.doi:US6462218 B1Werner HallenbachAlbrecht Marhold...
(57)< Abstract > This invention regards the production manner of the intermediate field and these intermediate fields in order to execute the production manner and the same manner of 3 cyano 2,4 dihalogeno 5 fluoro benzoic acid.ハレンバツハ...