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[ CAS No. 453565-89-4 ] {[proInfo.proName]}

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Chemical Structure| 453565-89-4
Chemical Structure| 453565-89-4
Structure of 453565-89-4 * Storage: {[proInfo.prStorage]}
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Product Details of [ 453565-89-4 ]

CAS No. :453565-89-4 MDL No. :MFCD15527568
Formula : C8H5BrF3NO3 Boiling Point : -
Linear Structure Formula :- InChI Key :-
M.W : 300.03 Pubchem ID :-
Synonyms :

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Application In Synthesis of [ 453565-89-4 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Upstream synthesis route of [ 453565-89-4 ]
  • Downstream synthetic route of [ 453565-89-4 ]

[ 453565-89-4 ] Synthesis Path-Upstream   1~1

  • 1
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YieldReaction ConditionsOperation in experiment
75.5% With sulfuric acid; sodium nitrite In sodium hydroxide; ethanol; water 3-Bromo-5-trifluoromethoxybenzoic Acid
4-Amino-3-bromo-5-trifluoromethoxybenzoic acid (1.5 g, 5 mmoles) was mixed with ethanol (15 mL) at 0° C. and then concentrated sulfuric acid (2.26 g, 10.2 mmoles) wad added.
The sodium nitrite (0.38 g, 5.5 mmoles) water solution (1.2 mL) was added dropwise at 0° C. for 1 hour.
After the reaction mixture was warmed to room temperature and then heated to reflux for 45 minutes, water was added.
The mixture was extracted with dichloromethane.
The dichloromethane layer was dried and concentrated.
The residue was dissolved in 1M sodium hydroxide and extracted with ether.
The aqueous solution was acidified with 2M HCl to pH=2 to give 3-bromo-5-trifluoromethoxybenzoic acid (1.08 g, 75.5percent).
Reference: [1] Patent: US2003/55085, 2003, A1,
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