BUTTPARK 99\57-19;RARECHEM AL BO 0773;3,5-dibromo-benzoicaci;3,5-DIBROMOBENZOIC ACID;3,5-DibromobenzoicAcid>Benzoic acid, 3,5-dibromo-;3,5-DibroMobenzoic Acid, 97+%
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NFPA 704
0
2
0
3,5-디브로모벤조익 산 C화학적 특성, 용도, 생산
화학적 성질
white to light yellow crystal powder
용도
3,5-Dibromobenzoic acid may be used for the syntheses (+)-menthyl 3,5-dibromobenzoate, di-tert-butyl 4-[2-(tert-butoxycarbonyl)ethyl]-4-(3,5-dibromobenzamido)heptanedioate2, (L)-methyl 2-(3,5-dibromobenzamido)-3-phenylpropanoate.
일반 설명
3,5-Dibromobenzoic acid is 3,5-dibromo-substituted benzoic acid.
Synthesis
3,5-Dibromobenzoic acid was synthesized from anthranilic acid by bromination, diazotization and additional reactions derived. The bromination reaction is carried out at about 20°C. After the reaction, the crystals are filtered, washed with hot water to remove anthranilic acid and hydrochloric acid, and recrystallized with acetic acid to obtain o-amino-3,5-dibromobenzoic acid; then use sodium nitrite to carry out diazotization in hydrochloric acid at about 0°C, then add the diazonium salt into ethanol containing calcium sulfate at 60-70°C in batches. After the addition is complete, continue stirring for 10 minutes, filter to obtain the crude product, and recrystallize with ethanol to obtain the finished product.
