Ethers-buliding-blocks

In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 170015-99-3, name is 2-(4-(Trifluoromethoxy)phenyl)ethanamine belongs to ethers-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below. Product Details of 170015-99-3

7-Chloro-5-(pyridin-2-yl)-[1,2,4]triazolo[1,5-a]pyrimidine 5k (100 mg, 0.43 mmol) was taken in NMP (4 mL) in a 50 mL round bottom flask under N2. To it was added 2-(4-(trifluoromethoxy)phenyl)ethan-1-amine (107 mg, 0.52 mmol) and the reaction mixture was stirred at rt for 0.5 h. The reaction mixture concentrated in vacuo and the resulting solid taken up in EtOAc and H2O, the organic layer was separated and the aqueous layer extracted with EtOAc (3 * 20 mL). The organic layers combined, washed with brine, dried over Na2SO4 and the solvent removed under reduced pressure. The crude was purified by flash chromatography on silica gel (100-200 mesh) using 32% EtOAc-hexane as eluent to afford 59 as a white solid (45 mg, 48%). M.P. 163-165 C. 1H NMR (400 MHz, DMSO-d6): delta 8.74 (d, J = 4.3 Hz, 1H), 8.55 (bs, 1H), 8.54 (s, 1H), 8.45 (d, J = 8.0 Hz, 1H), 8.01 (t, J = 7.6 Hz, 1H), 7.53-7.56 (m, 1H), 7.43 (d, J = 8.5 Hz, 2H), 7.33 (s, 1H), 7.26 (d, J = 7.9 Hz, 2H), 3.75-3.80 (m, 2H), 3.04-3.08 (m, 2H); 13C NMR (100 MHz, DMSO-d6): delta 159.0, 155.5, 154.9, 153.8, 149.2, 148.1, 146.9, 138.3, 137.4, 130.6, 125.2, 121.4, 120.9, 120.0 (q, J = 260 Hz), 84.5, 43.0, 33.5. LCMS (ESI) m/z 401.10.

The synthetic route of 170015-99-3 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Zuniga, Edison S.; Korkegian, Aaron; Mullen, Steven; Hembre, Erik J.; Ornstein, Paul L.; Cortez, Guillermo; Biswas, Kallolmay; Kumar, Naresh; Cramer, Jeffrey; Masquelin, Thierry; Hipskind, Philip A.; Odingo, Joshua; Parish, Tanya; Bioorganic and Medicinal Chemistry; vol. 25; 15; (2017); p. 3922 – 3946;,
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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. 701-07-5, name is 2-(2′-Bromophenoxy)propane, This compound has unique chemical properties. The synthetic route is as follows., 701-07-5

EXAMPLE 258A Preparation of 2-iso-propyloxybenzaldehyde The title compound was prepared as in Example 257A but employing 2-iso-propyloxybromobenzene in lieu of 1-bromo-3-isopropoxybenzene. Purification on silica, gel with 10% ether/hexane afforded the title compound (2.3 g, 70%). MS (DCI/NH3) m/z 165 (M+H)+, 182 (M+NH4)+.

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; Abbott Laboratories; US6284796; (2001); B1;,
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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. 20781-20-8, name is (2,4-Dimethoxyphenyl)methanamine, A new synthetic method of this compound is introduced below., HPLC of Formula: C9H13NO2

Into a vial was added the 4-bromo-2-fluoro-N-thiazol-2-yl-benzenesulfonamide (2.60 g, 0.00771 mol), sodium tert-butoxide (1.78 g, 0.0185 mol), 9,9-dimethyl-4,5-bis(diphenylphosphino)xanthene (0.27 g, 0.00046 mol), tris(dibenzylideneacetone)dipalladium(0) (0.14 g, 0.00015 mol) and 1,4-dioxane (24.1 mL, 0.308 mol). Argon was bubbled for 15 minutes. 2,4-Dimethoxybenzylamine (1.40 mL, 0.00925 mol) was added and the reaction mixture was heated at 100 C. overnight. The reaction mixture was cooled to room temperature then filtered over Celite. The filtrate was concentrated to give the crude product that was purified via automated flash chromatography (silica gel, 50% EtOAc in hexanes to 100% EtOAc) to give the product as a yellow solid (2.59 g, 79.3%)

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; Icagen; US2009/23740; (2009); A1;,
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Adding a certain compound to certain chemical reactions, such as: 588-96-5, name is p-Bromophenetole, 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 588-96-5, Application In Synthesis of p-Bromophenetole

To a solution of tert-butyl 4-(piperazinyisulfonyl)perhydro-2H-pyran-4-carboxyate (715 mg, 2.14 mmol, supplied by CarboGen) in toluene (15 mL) under N2 were added 1-bromo-4-ethoxybenzene (473 mg, 2.35 mmol), sodium tert-butoxide (514 mg, 5.35 mmol), palladium(II) acetate (5.0 mg, 0.021 mmol), and tri-tert-butylphosphine (3.5 mg, 0.17 mmol). The reaction was continued overnight at 60 C. under N2. No starting material remained at this time, so the reaction mixture was diluted with methanol and concentrated under reduced pressure. The residue was partially dissolved in dichloromethane and filtered. The filtrate was concentrated under reduced pressure, and the resulting dark material was triturated with diethyl ether to produce a white solid, which was collected by suction filtration to produce 640 mg of clean product (66%). 1H NMR and mass spectrometry (MH+=455) were consistent with the desired structure.

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; Barta, Thomas E.; Becker, Daniel P.; Bedell, Louis J.; Boehm, Terri L.; Brown, David L.; Carroll, Jeffery N.; Chen, Yiyuan; Fobian, Yvette M.; Freskos, John N.; Gasiecki, Alan F.; Grapperhaus, Margaret L.; Heintz, Robert M.; Hockerman, Susan L.; Kassab, Darren J.; Khanna, Ish K.; Kolodziej, Stephen A.; Massa, Mark A.; McDonald, Joseph J.; Mischke, Brent V.; Mischke, Deborah A.; Mullins, Patrick B.; Nagy, Mark A.; Norton, Monica B.; Rico, Joseph G.; Schmidt, Michelle A.; Stehle, Nathan W.; Talley, John J.; Vernier, William F.; Villamil, Clara I.; Wang, Lijuan J.; Wynn, Thomas A.; US2005/9838; (2005); A1;,
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In the chemical reaction process, reaction time, type of solvent, can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product. An updated downstream synthesis route of 20781-20-8 as follows. Recommanded Product: (2,4-Dimethoxyphenyl)methanamine

To a solution of 2,4-dimethoxybenzylamine (Sigma-Aldrich) (6.6 mL, 43.5 mmol) in DCM (85 mL) was added saturated aqueous sodium bicarbonate solution (85 mL) and the mixture was stirred vigorously at RT for 15 min. Stirring was stopped; then thiophosgene (6.6 mL, 87 mmol) was added via syringe to the bottom layer. The mixture was stirred at RT for 90 min then the aqueous layer was separated and the organic layer was washed with brine, dried over Na2S04 and concentrated in vacuo twice from DCM to give l-(isothiocyanatomethyl)-2,4- dimethoxybenzene

According to the analysis of related databases, 20781-20-8, the application of this compound in the production field has become more and more popular.

Reference:
Patent; MERCK SHARP & DOHME CORP.; KHAN, Tanweer; SMITH, Elizabeth; WILLIAMS, Peter; WISCOUNT, Catherine; MCKITTRICK, Brian; MCCAULEY, John; (72 pag.)WO2018/106519; (2018); A1;,
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Some common heterocyclic compound, 82172-73-4, name is O-(2-Methoxyethyl)hydroxylamine hydrochloride, molecular formula is C3H10ClNO2, 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. HPLC of Formula: C3H10ClNO2

Example 6-7 [0239] The Z isomer of cyclopropyl(6,6-diphenyl-6,7-dihydro-1H-indazol-3-yl)methanone O-(2-methoxyethyl)oxime may be prepared in the following manner: [0240] A suspension of 0.74 g of cyclopropyl(6,6-diphenyl-6,7-dihydro-1H-indazol-3-yl)methanone and 0.70 g of O-(2-methoxyethyl)hydroxylamine hydrochloride in 50 cm3 of pyridine is refluxed for about 7 hours. The solution obtained is concentrated to dryness under reduced pressure (13 kPa). The residue is taken up in 150 cm3 of dichloromethane. The solution is washed with three times 80 cm3 of water, dried over magnesium sulphate, filtered and concentrated to dryness under reduced pressure (13 kPa). The mixture of the Z and E isomers is separated by flash chromatography on a column of silica [eluent: dichloromethane/methanol (98/2 by volume)], collecting 60 cm3 fractions. [0241] Fractions 111 to 135 are combined and concentrated to dryness under reduced pressure (13 kPa). 0.37 g of the Z isomer of cyclopropyl(6,6-diphenyl-6,7-dihydro-1H-indazol-3-yl)methanone O-(2-methoxyethyl)oxime, corresponding to Example 6-7A, is thus obtained in the form of a resin, the characteristics of which are as follows: [0242] 1H NMR spectrum: (300 MHz, (CD3)2SO d6 with addition of a few drops of CD3COOD d4, delta in ppm): from 0.70 to 0.90 (mt: 4H); 1.81 (mt: 1H); 3.22 (s: 3H); 3.40 (s: 2H); 3.56 (t, J=5.5 Hz: 2H); 4.13 (t, J=5.5 Hz: 2H); 6.25 (d, J=10 Hz: 1H); 6.89 (d, J=10 Hz: 1H); from 7.10 to 7.30 (mt: 10H). [0243] IR spectrum (solvent CCl4) [0244] 3459; 3316; 2932; 2882; 1597; 1492; 1446; 1386; 1291; 1145; 1126; 1069; 1027; 1007; 952; 894; 700; 683 and 541 cm-1 [0245] O-(2-Methoxyethyl)hydroxylamine hydrochloride may be prepared as described by Dae-Kee Kim et al., J. Med. Chem., 40, 15, 1997, 2363-2373.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 82172-73-4, its application will become more common.

Reference:
Patent; Aventis Pharma S.A.; US2004/162276; (2004); 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. 6358-77-6, name is 5-Bromo-2-methoxyaniline, A new synthetic method of this compound is introduced below., SDS of cas: 6358-77-6

A 50-mL round-bottom flask was charged with 5-bromo-2-methoxy aniline(Alfa Aesar, 1.00 g, 4.95 mmol), 3-chloro-4-methylphenylboronic acid (Acros, 1.69 g, 9.90 mmol), 1,1 ‘-bis(diphenylphosphino)ferrocene palladium(II)dichloride dichloromethane adduct (0.81 g, 0.99 mmol), and purged with nitrogen. 1,4-Dioxane (37.1 ml) and an aqueous sodium carbonate solution (1.9 M, 12.4 mL) were introduced and the reaction mixture was warmed to 80 C. After 90 min, the reaction mixture was allowed to cool to ambient temperature and diluted with aqueous HCI solution (1.0 M, 25 mL) and EtOAc (25 mL). The layers were separated and the aqueous layer extracted with additional EtOAc (2 x 25 mL). The combined organic layers were washed with brine (50 mL), dried over anhydrous magnesium sulfate, filtered, concentrated under reduced pressure and purified by flash column chromatography (100-g silica gel Biotage column, eluent: gradient, 0 to 40% EtOAc in heptane with DCM as a 5% additive) to afford 3′-chloro-4-methoxy-4′-methyl-[l,l’-bipheny 1]-3-amine (1.03 g, 4.16 mmol, 84.0 % yield) as a tan solid.

The synthetic route of 6358-77-6 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; USA Anjin Corporation; M .weisi; B .C.miergelamu; T .dining; J .siteerwogen; A .gusiman-peileisi; A .beiqiao; I .E.makesi; (177 pag.)CN107531705; (2018); A;,
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These common heterocyclic compound, 107622-80-0, name is (4-Phenoxyphenyl)methanamine, 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. Computed Properties of C13H13NO

General procedure: The appropriate pyrazole (1.0 equiv) was treated with phosgene(20% in toluene) at 0 C. The reaction mixture was stirred at room temperature for 1 h.The solvent was removed under reduced pressure and the crude carbamoyl chloride was redissolved in anhydrous CH2Cl2 (0.5 M). The appropriate amine (1.0 equiv) and Et3N (1.2 equiv) were dissolved in CH2Cl2 and cooled to 0 C. The crude carbamoyl chloride was added dropwise and the reaction mixture was stirred at room temperature for 16 h.The mixture was diluted with EtOAc, washed with saturated aqueous NaCl, and dried over Na2SO4. Evaporation under reduced pressure yielded the crude coupling product that was purified by flash chromatography (SiO2).

The synthetic route of (4-Phenoxyphenyl)methanamine has been constantly updated, and we look forward to future research findings.

Reference:
Article; Otrubova, Katerina; Srinivasan, Venkat; Boger, Dale L.; Bioorganic and Medicinal Chemistry Letters; vol. 24; 16; (2014); p. 3807 – 3813;,
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27060-75-9, name is 1-Bromo-4-methoxy-2-methylbenzene, belongs to ethers-buliding-blocks compound, is considered to be a conventional heterocyclic compound, which is widely used in drug synthesis. The chemical synthesis route is as follows. Quality Control of 1-Bromo-4-methoxy-2-methylbenzene

This experiment was carried out four times. Tributyl(methoxy)stannane (400 g, 1.24 mol), 1-bromo-4-methoxy-2-methylbenzene (250 g, 1.24 mol), prop-1-en-2-yl acetate (187 g, 1.87 mol), palladium(ll) acetate (7.5 g, 33 mmol) and tri-o-tolylphosphine (10 g, 33 mmol) were stirred together in toluene (2 L) at 100 C for 18 hours. After it had cooled to room temperature, the reaction mixture was treated with aqueous potassium fluoride solution (4 M, 400 mL) and stirred for 2 hours at 40 C. The resulting mixture was diluted with toluene (500 mL) and filtered through diatomaceous earth; the filter pad was thoroughly washed with ethyl acetate (2 x 1 .5 L). The organic phase from the combined filtrates was dried over sodium sulfate, filtered, and concentrated in vacuo. Purification via silica gel chromatography (Gradient: 0% to 5% ethyl acetate in petroleum ether) provided the product as a yellow oil. Combined yield: 602 g, 3.38 mol, 68%. LCMS m/z 179.0 [M+H]+. 1H NMR (400 MHz, CDCl3) delta 7.05 (d, J=8.3 Hz, 1 H), 6.70- 6.77 (m , 2H), 3.79 (s, 3H), 3.65 (s, 2H), 2.22 (s, 3H), 2.14 (s, 3H).

The synthetic route of 27060-75-9 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; PFIZER INC.; BRODNEY, Michael Aaron; DAVOREN, Jennifer Elizabeth; DOUNAY, Amy Beth; EFREMOV, Ivan Viktorovich; GRAY, David Lawrence Firman; GREEN, Michael Eric; HENDERSON, Jaclyn Louise; LEE, Chewah; MENTE, Scot Richard; O’NEIL, Steven Victor; ROGERS, Bruce Nelsen; ZHANG, Lei; WO2014/207601; (2014); 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. 116557-46-1, name is 3-Bromo-2-methoxyaniline, A new synthetic method of this compound is introduced below., Computed Properties of C7H8BrNO

General Procedure: Methyl 2-{[4-(chlorosulfonyl)-2,3-dimethylphenyl]oxy}propanoate (7) (4 g, 13.0 mmol) was dissolved in pyridine (10 mL). After 5 min, 3-bromo-2-chloroaniline (3.22 g, 15.6 mmol) was added. The reaction was complete within a few hours. The reaction mixture was then extracted using diethyl ether. The combined organic phases were washed with 1N HCl and brine, dried over sodium sulfate, filtered, and concentrated in vacuo to afford the title compound which was used without further purification.

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:
Article; Evans, Karen A.; Shearer, Barry G.; Wisnoski, David D.; Shi, Dongchuan; Sparks, Steven M.; Sternbach, Daniel D.; Winegar, Deborah A.; Billin, Andrew N.; Britt, Christy; Way, James M.; Epperly, Andrea H.; Leesnitzer, Lisa M.; Merrihew, Raymond V.; Xu, Robert X.; Lambert, Millard H.; Jin, Jian; Bioorganic and Medicinal Chemistry Letters; vol. 21; 8; (2011); p. 2345 – 2350;,
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