Category: ethers-buliding-blocks

Related Products of 7252-83-7,Some common heterocyclic compound, 7252-83-7, name is 2-Bromo-1,1-dimethoxyethane, molecular formula is C4H9BrO2, 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.

13. Alkylation step C [00257] In a 20 ml microwave vial containing III-2 (1 equivalent), alkyl halide (4 equivalents), KI (2 equivalents), and Cs2CO3 (2 equivalents) was added anhydrous DMF, 10 –>ml. This was heated under microwave conditions at 1200C for 60 minutes. The reaction was added to a seperatory funnel containing water and washed 3x with EtOAc. The combined organic layers were washed with saturated aqueous brine solution. The organic layer was dried with MgSU4 concentrated in vacuo. This was filtered through a silica plug, washed 3x with EtOAc, and concentrated in vacuo to yield III-3 (100 %). This material was used without further purification. 4-BROMO-N-(3-BROMO-4-(2,2-DIMETHOXYETHOXY)PHENETHYL)THIOPHENE-2- CARBOXAMIDE [00258] 1H NMR (400 MHz, DMSO-d6) delta 8.64 (t, J= 5.2 Hz, IH), 7.88 (s, IH), 7.75 (s, IH), 7.45 (d, J= 2.0 Hz, IH), 7.16 (dd, J= 8.4, 1.6 Hz, IH), 7.06 (d, J= 8.4, IH), 4.68 (t, J= 5.2 Hz, IH), 4.00 (d, J= 7.2 Hz, 2H), 3.42 (q, J= 6.0 Hz, 2H), 3.37 (s, 6H), 2.76 (t, J= 6.8 Hz, 2H).

The synthetic route of 7252-83-7 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; VANDERBILT UNIVERSITY; WO2009/152071; (2009); A1;,
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Adding a certain compound to certain chemical reactions, such as: 74654-07-2, name is 2-(2-(2-Methoxyethoxy)ethoxy)ethanamine, belongs to ethers-buliding-blocks compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 74654-07-2, COA of Formula: C7H17NO3

Synthesis of compound 2 is shown in Figure 3. The synthesis began with converting chloroacetonitrile (13) to the sulfonic acid and then to the sulfonyl chloride (14) in 13% yield over two steps. Sulfonyl chloride (14) was found to be relatively unstable and therefore was quickly reacted with amine-TEG (7) to give sulfonamide-TEG (15) in 86% yield. Sulfonamide-TEG (15) was then condensed with aldehyde (12) to give compound 2 in 73% yield. [00311] Characterization data:

If you are interested in these compounds, you can also browse my other articles.Thank you for taking the time to read this article. I hope you enjoyed it.

Reference:
Patent; AMYDIS DIAGNOSTICS; SARRAF, Stella; (168 pag.)WO2016/40891; (2016); A2;,
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Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 19056-40-7, name is 4-Bromo-3-methoxyaniline, This compound has unique chemical properties. The synthetic route is as follows., name: 4-Bromo-3-methoxyaniline

2-(2-chlorophenylaminoacetic acid (lSOmg. 808 imoD and 4-bromo-3-methoxyaniline (171 mg, 849 imol) were combined with dichloromethane (10 m). At 0¡ãC N-(3-dimethylaminopropyl)-N?-ethylcarbodiimide hydrochloride (163 mg, 849 imol) was added. The reaction mixture was stirred at O ¡ãC for 30 mm, then at RT oyernight. The mixture was poured on water (20 ml) and extracted with dichloromethane (3 x 15 ml). chromatography (silicagel, ethyl acetate / heptane = 20:80 to 50:50) yielded N-(4-bromo-3-methoxyphenyl)-2-(2- chlorophenylamino)acetamide (225 mg, 75percent) as yellow solid. MS: mle =371.1 [M+H].

According to the analysis of related databases, 19056-40-7, the application of this compound in the production field has become more and more popular.

Reference:
Patent; F. HOFFMANN-LA ROCHE AG; HOFFMANN-LA ROCHE INC.; CECCARELLI, Simona M.; JAGASIA, Ravi; JAKOB-ROETNE, Roland; PETERS, Jens-Uwe; WICHMANN, Juergen; WO2014/79850; (2014); A1;,
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Reference of 2339-58-4, The chemical industry reduces the impact on the environment during synthesis 2339-58-4, name is 3-Fluoro-5-methoxyaniline, I believe this compound will play a more active role in future production and life.

A solution of 3-fluoro-5-methoxyaniline (800 mg, 5.67 mmol) in DMF (20 ml) was treated with NBS (1 g, 5.67 mmol) and the reaction mixture stirred at r.t. for 1 hr. The reaction mixture was treated with water and ethyl acetate. The phases were separated and the aqueous phase extracted with additional ethyl acetate. The combined organic phases were washed with water and brine, dried over sodium sulfate and concentrated. The residue was purified by Biotage Isolera (10-50% ethyl acetate in hexanes) to provide the desired product as an off white solid (1.05 g, 84%). LCMS calculated for C7H8BrFNO (M+H)+: m/z=220.0/222.0; Found: 220.0/222.0.

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, 3-Fluoro-5-methoxyaniline, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; Incyte Corporation; Sokolsky, Alexander; Vechorkin, Oleg; Wang, Anlai; Ye, Qinda; Yao, Wenqing; (77 pag.)US2019/256520; (2019); A1;,
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Synthetic Route of 60876-70-2, Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 60876-70-2, name is 1-Bromo-4-(tert-butoxy)benzene, This compound has unique chemical properties. The synthetic route is as follows.

[3-(4-Benzyloxy)phenoxy]benzo[b]thiophene-2-boronic acid was reacted with 4-(-tertbutoxy)bromobenzene according to the conditions described above for [2-iodo-3-(4-benzyloxy)phenoxy]benzo[b]thiophene and 4-(tertbutoxy)phenyl boronic acid to give [2-(4-tertbutyloxyphenyl)-3-(4-benzyloxy)phenoxy]benzo[b]thiophene in 81% yield.

The chemical industry reduces the impact on the environment during synthesis 1-Bromo-4-(tert-butoxy)benzene. I believe this compound will play a more active role in future production and life.

Reference:
Patent; Eli Lilly and Company; US5488058; (1996); A;,
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Related Products of 41406-00-2, These common heterocyclic compound, 41406-00-2, name is 3-Isopropoxyaniline, 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.

General procedure: 3-Chloro-4-fluoroaniline (172 mg, 1.18 mmol) was added to a solution of compound 12 (300 mg, 1.07 mmol) in isopropanol (10 mL) and refluxed for 8 h. The mixture was cooled to room temperature and filtered, the solid was washed with chill isopropanol (5 mL), the residue was treated with aqueous NaHCO3 (10 mL) and extracted with EtOAc/MeOH (20:1, 30 mL). The organic layer was washed with brine, dried over Na2SO4, and concentrated. Purified by silica-gel column chromatography (DCM/MeOH, 40/1), Rf = 0.25. Drying gave 358 mg (yield, 86%) of the title compound as white solid.

Statistics shows that 3-Isopropoxyaniline is playing an increasingly important role. we look forward to future research findings about 41406-00-2.

Reference:
Article; Yin, Siyuan; Zhou, Liliang; Lin, Jinsheng; Xue, Lingjing; Zhang, Can; European Journal of Medicinal Chemistry; vol. 101; (2015); p. 462 – 475;,
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Adding a certain compound to certain chemical reactions, such as: 27191-09-9, name is 3-Methoxyaniline hydrochloride, belongs to ethers-buliding-blocks compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 27191-09-9, Quality Control of 3-Methoxyaniline hydrochloride

[0329] To the HCl salt of 3-methoxy-phenylamine (4.6 g, 28.9 mmol) in IN HCl(30O mL) was added a solution of 2-nitro-malonaldehyde (2.7 g, 19.3 mmol) in 15O mL water. After 30 min, the precipitate was filtered and rinsed with 0.1 N HCl. Air-drying in a Bchner funnel for 18 h gave 3.36 g (78%) of a light yellow/green powder. LC/MS (m/z): 245.1 (MH+ +Na), Rt 2.21 minutes.

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, 3-Methoxyaniline hydrochloride, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; NOVARTIS AG; WO2007/84786; (2007); A1;,
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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. 588-96-5, name is p-Bromophenetole, A new synthetic method of this compound is introduced below., Recommanded Product: p-Bromophenetole

(1) A small amount of iodine was added to a suspension of 1-bromo-4-ethoxybenzene (484 muL) and magnesium (82.3 mg) in THF at room temperature in a nitrogen atmosphere, and the mixture was stirred at 50 C. for one hour. The reaction solution was returned to room temperature and a solution of 5-cyclopropyl-6-methoxypyridine-2-carbaldehyde (300 mg) in tetrahydrofuran (1 mL) was added, followed by stirring at 50 C. for one hour. Tetrahydrofuran was concentrated under reduced pressure and a saturated ammonium chloride solution was added, followed by extraction with ethyl acetate. The organic layer was filtered through diatomaceous earth, and then the solvent was concentrated under reduced pressure. The resulting residue was purified by silica gel column chromatography (hexane:ethyl acetate=50:1?9:1) to give (5-cyclopropyl-6-methoxypyridin-2-yl)(4-ethoxyphenyl)methanol as a yellow oil (438 mg, 86%).

The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.

Reference:
Patent; TAISHO PHARMACEUTICAL CO., LTD; NISSAN CHEMICAL INDUSTRIES, LTD.; US2011/237791; (2011); A1;,
Ether – Wikipedia,
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Some common heterocyclic compound, 1535-75-7, name is 2-(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. COA of Formula: C7H6F3NO

Step (1) Preparation of 2-Trifluoromethoxyphenylhydrazine Hydrochloride A solution of o-trifluoromethoxyaniline (1.77 g, 10 mmol) in cold, concentrated HCl (11.6 mL) was diazotized at -5 C. (internal temperature) with a solution of NaNO2 (0.69 g, 10 mmol) in water (11 mL). After 15-20 minutes the mixture was treated portionwise with a cold (0 C.) solution of tin (II)chloride dihydrate (4.5 g, 20 mmol) in concentrated HCl (4 mL). Stirring was continued for another 3 hours with the ice bath warming to room temperature after one hour. The suspension was recooled, basified with 50% NaOH (to pH 14) and extracted with ether. The extracts were washed with 1N NaOH, water and brine, dried (MgSO4) and acidified with an excess of ethereal HCl. Removal of the solvent in vacuo yielded the title compound as an off-white solid (2 g, 88%). It was used without further purification. NMR (DMSO-d6, 400 MHz): delta7.03 (m, 1H, ArH), 7.18 (d, J=7.5 Hz, 1H, ArH), 7.34 (m, 2H, ArH), 8.40 (s, 1H, NH). MS (EI, m/z): 197 (M)+, 77 (b.p.).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 1535-75-7, its application will become more common.

Reference:
Patent; American Home Products Corporation; US4960902; (1990); A;,
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Related Products of 450-88-4, These common heterocyclic compound, 450-88-4, name is 1-Bromo-4-fluoro-2-methoxybenzene, 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.

15 g of 1-bromo-4-fluoro-2-methoxybenzene obtained by Production example 89 was dissolved in 150 mL of 1-methyl-2-pyrrolidone, added with 9.9 g of copper cyanide (I), and stirred at 180C for 5 hours. After allowing to cool, the reaction solution was poured into 500 mL of 14% ammonia aqueous solution, stirred for 45minutes, then added with 150 mL of diethyl ether, and stirred for another 10 minutes. After filtering off the insoluble substances through Celite, the solution was extracted with diethyl ether. The organic layer was washed with diluted aqueous ammonia, 5N hydrochloric acid, water and saturated brine, and dried over magnesium sulfate. The solvent was evaporated, to afford 10.1 g of the title compound as white crystals.1H-NMR ( 400 MHz, CDCl3 ) delta 3.93 ( 3H, s ), 6.67 – 6.74 ( 2H, m ), 7.54 ( 1H, dd, J = 6.0, 8.4 Hz )

The synthetic route of 450-88-4 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Eisai Co., Ltd.; EP1510516; (2005); A1;,
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem