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Name:4-Fluoro-3-(trifluoromethyl)phenol

CAS NO: 61721-07-1

Purity: 99%

MF: C7H4F4O

MW:180.100

BP:206.6±35.0 °C at 760 mmHg

Density:1.4±0.1 g/cm3

MP: N/A

EINECS:432-560-0

Appearance: Colorless to slightly yellow liquid

Package: 25g, 100g, 500g, bulk package

Application: organic intermediate

Other name:

4-fluoro-3-trifluoromethyl phenol;

Phenol, 4-fluoro-3-(trifluoromethyl)-;

3-Trifluoromethyl-4-fluorophenol;

2-fluoro-5-hydroxybenzotrifluoride;

α,α,α-4-罢别迟谤补蹿濒耻辞谤辞-尘-肠谤别蝉辞濒;

Process for preparing 4-fluoro-3-trifluoromethylphenol  CAS NO: 61721-07-1

Disclosed is a process for preparing 4-fluoro-3-trifluoromethylphenol from 4-fluoro-3-trifluoromethylaniline, which comprises the steps of (1) using about 1 to 20 parts by weight of water based on 1 part by weight of 4-fluoro-3-trifluoromethylaniline in the presence of sulfuric acid to obtain 4-fluoro-3-trifluoromethylaniline sulfate; (2) subjecting the obtained 4-fluoro-3-trifluoromethylaniline sulfate to a diazotization reaction by using a diazotizing agent to obtain an aqueous solution containing about 8 to 25% by weight of a 4-fluoro-3-trifluoromethylbenzene-diazonium salt where a sulfuric acid concentration after diazotization is about 30 to 70% by weight in terms of the amount of sulfuric acid added, and the amount of water used is about 1 to 20 parts by weight based on 1 part by weight of 4-fluoro-3-trifluoromethylaniline; and (3) hydrolyzing the obtained 4-fluoro-3-trifluoromethylbenzenediazonium salt where a sulfuric acid concentration is about 30 to 70% by weight in terms of the amount of sulfuric acid added in a copper sulfate aqueous solution.

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