ChemicalBook CAS DataBase List 2-Bromo-5-nitrobenzotrifluoride

2-Bromo-5-nitrobenzotrifluoride synthesis

6synthesis methods

Product Name:2-Bromo-5-nitrobenzotrifluoride
CAS Number:367-67-9
Molecular formula:C7H3BrF3NO2
Molecular Weight:270

392-83-6 Synthesis

392-83-6
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$6.00/10g

367-67-9
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$10.00/5G

Yield:367-67-9 92%

Reaction Conditions:

with sulfuric acid;nitric acid at 50 - 60;

Steps:

2.2 (2) nitration reaction

At room temperature and stirring to 260 g concentrated sulfuric acid (98%) slowly add 120 g fuming nitric acid, dubbed nitric acid. 50-60°C to the mixed acid slowly add the product of the next step o-bromotrifluorotoluene 390 g, after adding insulation stir, GC detection has no raw materials that For the end of the reaction. Liquid, the upper organic phase washed by alkali to neutral, washed immediately after the bright yellow liquid liquid 2-bromo-5-nitro-trifluorotoluene 450.4 g, GC content: 95%, yield: 92%.

References:

CN106905104,2017,A Location in patent:Paragraph 0020-0021

393-36-2 Synthesis