Extended knowledge of 461-82-5

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 461-82-5, its application will become more common.

Some common heterocyclic compound, 461-82-5, name is 4-(Trifluoromethoxy)aniline, molecular formula is C7H6F3NO, traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route. Computed Properties of C7H6F3NO

4-Trifluoromethoxyaniline (1.0 g, 5.6 mmol) was dissolved in glacial acetic acid (10 mL). Bromine (585 muL, 11 mmol) dissolved in glacial acetic acid (2 mL) was added with stirring during 10 minutes at room temperature. The resulting mixture was stirred at room temperature for 2 hours and then poured into water (100 mL). The solid formed (2,5-dibromo-4-trifluoromethoxyaniline) was filtered off. The filtrate was made alkaline with solid sodium hydroxide and extracted with dichloromethane (100 mL), dried (MgSO4) and concentrated (30C; 200 mBar) to afford 0.57 g (40%) of 2-bromo-4-trifluoromethoxyaniline.1H NMR (DMSO-d6): delta 5.55 (2H, bs), 6.85 (1H, d), 7.10 (1H, dd), 7.37 (1H, d).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 461-82-5, its application will become more common.

Reference:
Patent; NOVO NORDISK A/S; AGOURON PHARMACEUTICALS, INC.; EP1183229; (2005); B1;,
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Ether | (C2H5)2O – PubChem

Continuously updated synthesis method about 461-82-5

The chemical industry reduces the impact on the environment during synthesis 461-82-5. I believe this compound will play a more active role in future production and life.

461-82-5, The chemical industry reduces the impact on the environment during synthesis 461-82-5, name is 4-(Trifluoromethoxy)aniline, I believe this compound will play a more active role in future production and life.

N-Bromosuccinamide (3.62 g, 20.34 mmol) was added to a solution of commercially available 4-(trifluoromethoxy)aniline (3.00 g, 1 6.95 mmol) in acetonitrile (30 mL) at 0C. The resulting mixture was allowed to warm to roomtemperature and stirred for 4 hours. The solvent was removed under reduced pressure to give the crude product which was purified by column chromatography eluting in 10% ethyl acetat/hexane to afford the title compound as brown oil (3.6 gm, 83%): 1 H NMR (400 MHz, CDCI3) oe: 4.11 (bs, 2 H), 6.73 (d, 1 H), 6.99 (dd, 1 H), 7.31 (d, 1 H). LC-Ms (m/z): [M-H] = 253.1.

The chemical industry reduces the impact on the environment during synthesis 461-82-5. I believe this compound will play a more active role in future production and life.

Reference:
Patent; ZOETIS SERVICES LLC; WENDT, John; COX, Mark; SHEEHAN, Susan, M.k.; CURTIS, Michael, P.; RESPONDEK, Tomasz; EWIN, Richard, Andrew; KYNE, Graham, M.; JOHNSON, Paul, D.; WO2015/100232; (2015); A2;,
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Continuously updated synthesis method about 461-82-5

The chemical industry reduces the impact on the environment during synthesis 4-(Trifluoromethoxy)aniline. I believe this compound will play a more active role in future production and life.

461-82-5, The chemical industry reduces the impact on the environment during synthesis 461-82-5, name is 4-(Trifluoromethoxy)aniline, I believe this compound will play a more active role in future production and life.

A method for preparing 2,6-dibromo-4- (trifluoromethoxy) aniline,Including the following steps:The sodium sulfate was filtered off embodiment Example 4 156g crystallization mother liquor into 250mL 4-neck flask,Start stirring dropping 17.5 (0.175mol) sulfuric acid,Then, 36.5 g of sodium bromide (0.354 moL) was added and then 30 g (99percent, 0.168 mol) of 4-trifluoromethoxyaniline was added.Adjust the temperature to above 30 ,Start dropping 35percent hydrogen peroxide 38g,When dropping temperature rise,When the temperature rose to 50 ,By controlling the cooling liquid dripping temperature control between 50 ~ 55 ,Keep the temperature drops off,Drip finished insulation 3 hours,Cooling to about 30 ,filter,Filter cake drying,White crystals of 2,6-dibromo-4-trifluoromethoxyaniline 55.8 g, purity99.6percent (HPLC), yield 99.2percent.

The chemical industry reduces the impact on the environment during synthesis 4-(Trifluoromethoxy)aniline. I believe this compound will play a more active role in future production and life.

Reference:
Patent; Yancheng Limin Agrochemical Co., Ltd.; Huang Haijun; Zhu Mingliang; (7 pag.)CN106631839; (2017); A;,
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem