Category: 467435-07-0

Synthetic Route of 467435-07-0, These common heterocyclic compound, 467435-07-0, name is 4-Bromo-2-chlorobenzotrifluoride, its 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.

Example 1677 Production of (4aS,8aS)-3,3-dimethyl-l-(3-chloro-4-trifluoromethylphenyl)decahydroquinoxali ne dihydrochloride n A toluene (5 mL) suspension of (4aS,8aS)-2,2-dimethyldecahydroquinoxaline (200 mg, 1.19 mmol), 4-bromo-2-chloro-l-trifluoromethylbenzene (370 mg, 1.43 mmol), sodium tert-butoxide (137 mg, 1.43 mmol), palladium (II) acetate (21.3 mg, 0.0951 mmol), and tri-tert- butylphosphine tetrafluoroborate (27.6 mg, 0.0951 mmol) was stirred for 4 hours at 100 C in a nitrogen atmosphere. After the reaction mixture was cooled to room temperature, insoluble matter was filtered through celite, and the filtrate was then concentrated under reduced pressure. The obtained residue was purified by NH-silica gel column chromatography (n-hexane: ethyl acetate) to obtain pale yellow oil. 1 N hydrochloric acid/ethyl acetate (5.0 mL) was added to an ethanol solution of the obtained oil with stirring at room temperature, and, after sufficient stirring, the mixed solution was concentrated under reduced pressure. The obtained oil was added with an appropriate amount of ethanol/ethyl acetate and the deposited crystal was collected by filtration. The obtained crystal was washed with ethyl acetate and then dried under reduced pressure to obtain (4aS,8aS)-3,3-dimethyl-l-(3-chloro-4- trifluoromethylphenyl)decahydroquinoxaline dihydrochloride (348 mg, yield: 70%) in a white powder form.

The synthetic route of 467435-07-0 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; OTSUKA PHARMACEUTICAL CO., LTD.; SHINOHARA, Tomoichi; SASAKI, Hirofumi; TAI, Kuninori; ITO, Nobuaki; WO2013/137479; (2013); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 467435-07-0, name is 4-Bromo-2-chlorobenzotrifluoride, A new synthetic method of this compound is introduced below., Computed Properties of C7H3BrClF3

j00628j To a mixture of 4-bromo-2-chloro-1-(trifluoromethyl)benzene (0.11 g, 0.44 mmol) and compound (R)-A-2 (0.10 g, 0.55 mmol) in dioxane (10 mL) under nitrogen at room temperature was added cesium carbonate (0.36 g, 1.1 mmol), 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene (32 mg, 0.050 mmol) and tris(dibenzylideneacetone)dipalladium(0) (25 mg, 0.028 mmol). The reaction mixture was stirred at 106 C for 2 hours, then filtered and concentrated in vacuo. The residue was purified by prep-HPLC [Instrument: Shimadzu pump LC-20A; Column: GEMiNI 200 x 50 mm, particle size: 10 jim; Mobile phase: 55-66.7% acetonitrile in H20 (add 0.5% NH3 H20, v/v)j. The combined fractions were lyophilized, treated with 0.2 M hydrochloric acid and again lyophilized to give:Compound (R)-35 (65 mg, 37% yield) as a white solid: cSFC analytical tR=2.60 mm., purity: 100%; LCMS (M): tR=2.42 mm., 360.1 m/z (M+1); ?H-NMR (CD3OD, 400 MHz): 7.79 (s, 1H), 7.65 (d, J=8.8 Hz,1H), 7.43 (d, J=8.4 Hz,1H), 3.71-3.61 (m, 2H), 3.48-3.42 (m, 2H), 3.39-3.36 (m, 4H), 2.46-2.39 (m, 2H), 2.16-2.08 (m, 1H), 2.03-1.90 (m, 2H).

The synthetic route of 467435-07-0 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; FORUM PHARMACEUTICALS, INC.; ACHARYA, Raksha; BURNETT, Duane, A.; BURSAVICH, Matthew, Gregory; COOK, Andrew, Simon; HARRISON, Bryce, Alden; McRINER, Andrew, J.; (267 pag.)WO2017/69980; (2017); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Electric Literature of 467435-07-0,Some common heterocyclic compound, 467435-07-0, name is 4-Bromo-2-chlorobenzotrifluoride, molecular formula is C7H3BrClF3, 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.

Into a glass reaction vessel equipped with a stirrer and having a capacity of 250 mL,7.2 g (68.0 mmol) of sodium carbonate,2.6 g (20.4 mmol) of 2-thiopheneboronic acid,4-Bromo-2-chlorobenzotrifluoride 2.5 mL(17.0 mmol), dehydrated toluene 102 mL, dehydrated ethanol 51 mL,And 2.0 g (1.7 mmol) of tetrakistriphenylphosphine palladium,And the mixture was reacted at 80 C. for 16 hours.Water was added to the reaction product, and the mixture was extracted with methylene chloride.After drying with magnesium sulfate and distilling off the solvent under reduced pressure, purification by silica gel column chromatography (hexane) gave 4.4 g of compound (C11-c) as a white solid.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 4-Bromo-2-chlorobenzotrifluoride, its application will become more common.

Reference:
Patent; Ube Industries Ltd; Tanaka, Yasuhiro; Homma, Takashi; (66 pag.)JP2018/168138; (2018); A;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

These common heterocyclic compound, 467435-07-0, name is 4-Bromo-2-chlorobenzotrifluoride, its 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. Safety of 4-Bromo-2-chlorobenzotrifluoride

Preparation of Intermediate ethyl 3-(3-chloro-4-(trifluoromethyl)phenyl)acrylate (I-85a) DABCO (86.4 mg, 0.7 mmol), Pd(OAc)2 (86.5 mg, 0.38 mmol), 4-bromo-2-chloro-1-(trifluoromethyl)benzene (5.0 g, 19.2 mmol) and ethyl acrylate (2.86 g, 28.9 mmol) were added to a stirred solution of K2CO3 (2.6 g, 19.27 mmol) in DMF degassed previously for 20 minutes. The resulting mixture was stirred for 1 hour at 110 C. The reaction was monitored by TLC (5% ethyl acetate in hexane). Purification by column chromatography on silica gel (5% ethyl acetate in hexane) afforded 5.0 g of the product (94.3% yield). 1H NMR (CDCl3, 400 MHz): delta 7.75-7.7 (d, 1H), 7.68-7.62 (d, 1H), 7.6 (s, 1H), 7.54-7.46 (d, 1H), 6.54-6.48 (d, 1H), 4.3-4.2 (q, 2H), 1.4-1.32 (t, 3H).

The synthetic route of 4-Bromo-2-chlorobenzotrifluoride has been constantly updated, and we look forward to future research findings.

Reference:
Patent; NOVARTIS AG; Bock, Mark Gary; Gaul, Christoph; Gummadi, Venkateshwar Rao; Moebitz, Henrik; Sengupta, Saumitra; US2014/45872; (2014); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics