Month: August 2021

710-18-9, name is 1-Methoxy-4-(trifluoromethoxy)benzene, 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. Recommanded Product: 1-Methoxy-4-(trifluoromethoxy)benzene

PREPARATION 18 Synthesis of 2-methoxy-5-trifluoromethoxybenzoyl chloride Combine 2-methoxy-5-trifluoromethoxybenzene (1.0 g, 5.2 mmol) and trifluoroacetic acid (200 mL). Add slowly portionwise hexamethylenetetraamine (26 g, 185.7 mmol). Heat at 60 C. After 24 hours, cool to ambient temperature and pour the reaction mixture into a 2 M aqueous solution of sulfuric acid (500 mL). Cool and extract ten times with diethyl ether. Dry the combined organic layers over Na2 SO4, filter, and evaporate in vacuo to give a residue. Chromatograph the residue on silica gel eluding with 1/4 ethyl acetate/hexane to give 2-methoxy-5-trifluoromethoxybenzaldehyde.

The synthetic route of 710-18-9 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Hoescht Marion Roussel, Inc.; US5998439; (1999); A;,
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Synthetic Route of 366-99-4, 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. 366-99-4, name is 3-Fluoro-4-methoxyaniline belongs to ethers-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

Example 31 Synthesis of (4,6-Dichloro-[1,3,5]triazin-2-yl)-(3fluoro-4-methoxy-phenyl)-amine (124) To cyanuric chloride (28.84 g, 156.0 mmol) dissolved in acetone (200 mL) stirring at approximately 0-5° C., was added a solution of 3-fluoro-p-anisidine (22.16 g, 156.0 mmol) in acetone (200 mL) followed by the addition of NaOH (63 mL, 2.5 N, 156.0 mmol). The reaction mixture was allowed to stir at approximately 0-5° C. for about 2 hours. The reaction mixture was then poured over crushed ice and neutralized with 10percent HCl (aq) and 5percent NaOH (aq). The resulting solid was collected by vacuum filtration, washed with water and dried overnight under vacuum. Column chromatography (silica gel, 70:30 hexane:ethyl acetate) yielded light yellow solid compound 124 (29.6 g, 66percent); mp 134° C.; HPLC: Inertsil ODS-3V C18, 40:30:30 [KH2PO4 (0.01M, pH 3.2): CH3OH: CH3CN], 264 nm, Rt 20.3 min, 97.7percent purity.

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-4-methoxyaniline, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; Timmer, Richard T.; Alexander, Christopher W.; Pillarisetti, Sivaram; Saxena, Uday; Yeleswarapu, Koteswar Rao; Pal, Manojit; Reddy, Jangalgar Tirupathy; Krlshna Reddy, Velagala Venkata Rama Murali; Sridevi, Bhatlapenumarthy Sesha; Kumar, Potlapally Rajender; Reddy, Gaddam Om; US2004/209880; (2004); A1;,
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Adding a certain compound to certain chemical reactions, such as: 1077-01-6, name is 1-Fluoro-3-(trifluoromethoxy)benzene, 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 1077-01-6, Recommanded Product: 1-Fluoro-3-(trifluoromethoxy)benzene

To the solution of 3- (trifluoromethoxy)fluorobenzen(1g, 5.5 mmol) in lOmL THF at -78C, n-BuLi (1.6M, 3.75mL) was added dropwise. The resulting solution was stirred at -78C for 30 min. 12 (2.1g, 8.25 mmol) in THF (5mL) was added. The mixture was warmed to room temperature and then quenched with Na2C03 in saturated Na2S203 (1: 10) (30mL). The crude product was extracted with ether. The ether layer was dried over Na2S04 and filtered through a short silica gel column to give the desired iodide as an oil. ¹H NMR (CDC13): 7.39 (m, 1H), 7.12 (d, J=9.0 Hz, 1H), 7.05 (t, J=6.0 Hz, 1H) MS (ESI): m/e 307 (M+1)+

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; MERCK & CO., INC.; WO2005/97136; (2005); A1;,
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Adding a certain compound to certain chemical reactions, such as: 20781-20-8, name is (2,4-Dimethoxyphenyl)methanamine, 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 20781-20-8, category: ethers-buliding-blocks

To a solution of compound 58 (6.6 g, 33.5 mmol) in dichloromethane (100 mL) were added DIPEA (8.65 g, 67 mmol), HOBt (5.4 g, 36.85 mmol) and EDCI (9.6 g, 50.3 mmol). After about 15 min stirring, to the homogeneous reaction mixture was added a solution of 2,4-dimethoxybenzyl amine (5.6 g, 33.5 mmol) in dichloromethane (50 mL) dropwise under nitrogen atmosphere. The resulting mixture was stirred under nitrogen atmosphere at room temperature for l6h. The reaction mixture was washed successively with 1N NaOH (100 mL), water (100 mL) and brine (100 mL). The organic phase was then dried over Na2S04 and evaporated to give a crude solid product 59 that crystallized from ethyl ether. Filtration and open air suction drying afforded an off-white solid pure product 9.8g (96%), (MS: [M+l] = 347).

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; AGENEBIO, INC.; MEKONNEN, Belew; BUTERA, John, A.; HUANG, Jianxing; PATEL, Hemantbhai; JIANG, Qin; HERR, Robert, Jason; MAYHEW, Nicholas, James; FREEMAN, Emily, Elizabeth; (682 pag.)WO2019/246300; (2019); A1;,
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Electric Literature of 2132-62-9, The chemical industry reduces the impact on the environment during synthesis 2132-62-9, name is 1,2-Bis(4-methoxyphenyl)ethyne, I believe this compound will play a more active role in future production and life.

6-chloro-1-(4-chlorophenyl)-3,4-bis(4-methoxyphenyl)-1H-2,1-benzoxaphosphinine 1-oxide (69.1 mg, 88%) as a target product was obtained under the condition of 90 C. for 16 hours, by the same reaction as the Example 1 above, except for using bis(4-chlorophenyl)phosphinic acid (43.0 mg, 0.15 mmol) instead of using phenylphosphonic monoethyl ester of the Example 1 above, and using 1,2-bis(4-methoxyphenyl)ethyne (53.6 mg, 0.23 mmol) instead of using diphenylacetylene of the Example 1 above. (0218) 1H NMR (400 MHz, CDCl3) delta 7.87-7.81 (m, 2H), 7.52-7.44 (m, 3H), 7.29 (td, J=8.1, 2.1 Hz, 1H), 7.17-7.14 (m, 4H), 7.05 (dd, J=4.1, 4.8 Hz, 1H), 6.95 (app d, J=8.7, 2H), 6.67-6.63 (m, 2H), 3.87 (s, 3H), 3.73 (s, 3H).

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, 1,2-Bis(4-methoxyphenyl)ethyne, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; KNU-INDUSTRY COOPERATION FOUNDATION; Lee, Phil Ho; Park, Young Chul; Jeon, In Cheol; Seo, Jung Min; Seo, Bo Ram; US2015/344506; (2015); A1;,
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Reference of 32338-02-6, 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. 32338-02-6, name is 2-Bromo-4-methoxyaniline belongs to ethers-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

General procedure: A mixture of benzyl 1-oxa-6-azaspiro[2.5]octane-6-carboxylate (247 mg, 1.0 mmol), 2-bromo-4-methoxyaniline (303 mg, 1.5 mmol) and lithium perchlorate (190 mg, 1.7 mmol) were taken in acetonitrile (3.0 mL). The reaction mixture was heated to 90 °C for 18 h. The reaction mixture was diluted with ethyl acetate (20 mL) and washed with water. The organic layer was dried over sodium sulfate and concentrated under reduced pressure, and the product was purified by column chromatography (silica gel, 50percent EtOAc/hexanes) to provide benzyl 4-(((2-bromo-4-methoxyphenyl)amino)methyl)-4-hydroxypiperidine-1-carboxylate, 5c (358 mg, 80percent) as a colourless syrup.

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

Reference:
Article; Kurissery, A. Tony; Rajkumar, G. Abraham; Arvapalli, Venkata Satyanarayana; Pitchumani, Venkatachalam; Tetrahedron Letters; vol. 58; 37; (2017); p. 3607 – 3611;,
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Adding a certain compound to certain chemical reactions, such as: 41406-00-2, name is 3-Isopropoxyaniline, 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 41406-00-2, Formula: C9H13NO

EXAMPLE 272C 6-(3-Isopropoxybenzeneaminocarbonyl)-2-quinolinylnitrile A solution of 3-isopropoxyaniline (0.332 g, 2.2 mmol) in dry dichloromethane (5 mL) was treated with trimethylaluminum (1.1 mL of 2 M solution in hexanes) under N2 at room temperature. After 20 minutes, methyl 2-cyano-6-quinolinecarboxylate (0.414 g, 2 mmol) was added in one portion and the reaction mixture was allowed to stir at room temperature for three days. The reaction mixture was quenched with 2 M HCl (vigorous reaction) and allowed to stir for 10 minutes. The precipitated product was filtered off, washed with dichloromethane and water, and dried in a vacuum oven to afford 0.23 g (35%) of product sufficiently pure for the next step. MS m/z 332 (M+H)+, m/z 349 (M+NH4)+; 1H NMR (300 MHz, DMSO-d6) delta 1.30 (d, 6H), 4.58 (septet, 1H), 6.68-6.72 (m, 1H), 7.29 (t, 1H), 7.34-7.39 (m, 1H), 7.47-7.49 (m, 1H), 8.15 (d, 1H), 8.27 (d, 1H), 8.38 (dd, 1H), 8.73 (d, 1H), 8.84 (d, 1H), 10.56 (s, 1H, NH); IR (mic) v 3434, 2233, 1677;

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-Isopropoxyaniline, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; Abbott Laboratories; US6284796; (2001); B1;,
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Related Products of 538-86-3, 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. 538-86-3, name is (Methoxymethyl)benzene belongs to ethers-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

General procedure: A solution of trichloroacetimidate 7 (1.4 mmol) and the nucleophileanisole, 1,2-dimethoxybenzene, 1-fluoro-3-methoxybenzene, (methoxymethyl)benzene, benzene, toluene or 1-fluoro-3,4-dimethoxy-2-methylbenzene(8a-g) (1.4 mmol) in dry CH2Cl2 (20 ml) were treated withTMSOTf (0.16 ml) and then stirred for 20?100 min. Addition of solidsodium bicarbonate quenched the reaction, which was diluted withCH2Cl2. The reaction mixture was filtered and concentrated to give 9ag.

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, (Methoxymethyl)benzene, other downstream synthetic routes, hurry up and to see.

Reference:
Article; El-Nezhawy, Ahmed O.H.; Alrobaian, Majed; Khames, Ahmed; El-Badawy, Mohamed F.; Abdelwahab, Sayed F.; Bioorganic and Medicinal Chemistry; vol. 27; 7; (2019); p. 1263 – 1273;,
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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. 67191-35-9, name is 1-Isopropoxy-2-vinylbenzene belongs to ethers-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below. Application In Synthesis of 1-Isopropoxy-2-vinylbenzene

A flame-dried Schlenk reaction ask is charged with a stir bar and put under an Ar atmosphere. 748 mg [Dichloro-(3-phenyl-1H-inden-1-yliden)-(1,3-dimesityl-4,5-dihydro-imidazol-2-ylidene)-(pyridine)-ruthenium(II)] 2c (1.00 mmol, Umicore AG & Co KG, Hanau), 173 mg 2-isopropoxystyrene (1.05 mmol; 1.05 equiv) and 1026 mg Amberlyst 15-A resin (4.00 mmol; 4 equiv) is loaded into the reaction ask and 25 mL THF is added. The reaction mixture is stirred at 40 C. for 1 hour, during which the reaction mixture turns from red to green color. Then, the reaction mixture is sent through a Pasteur pipette equipped with a cotton plug to remove the polystyrene sulfonic acid resin. Evaporation of all volatiles, suspending in 20 mL n-hexane and subsequent filtration and drying in vacuo afforded 578 mg of the desired compound 3b as a green, air-stable product (yield: 94%). 1H and 13C NMR analytics are in agreement with those found in literature.

The synthetic route of 67191-35-9 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; GHENT UNIVERSITY; UMICORE AG & CO. KG; Monsaert, Stijn Frans; Verpoort, Francis Walter Cornelius; US2013/35494; (2013); 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. 21388-17-0, name is 2-Ethyl-6-methoxynaphthalene, A new synthetic method of this compound is introduced below., Formula: C13H14O

6-Methoxy-2-ethylnaphthalene (1.8 g), ethanol (46 mg), TBP (73 mg, 1 equivalent), Pd(Xantphos)Cl2 (3.8 mg, 1 mol %), and benzene (1 mL) were added into a reaction kettle, into which 10 atm carbon monoxide was introduced. The reaction was heated to 120 C., and stirred at this constant temperature for 16 h. After the reaction was completed, carbon monoxide was discharged, and 102 mg carbonylated ester product was obtained by column chromatography, in a yield of 79%. 1HNMR (400 MHz, CDCl3) delta 1.29 (t, J=7.2 Hz, 3H), 1.67 (d, J=6.4 Hz, 3H), 3.77-3.84 (m, 4H), 4.21 (q, J=7.2 Hz, 2H), 7.22-7.24 (m, 2H), 7.40-7.43 (m, 2H), 7.87-7.90 (m, 2H); 13CNMR (100 MHz, CDCl3) delta13.7, 14.1, 40.8, 55.8, 61.6, 105.4, 126.1, 126.7, 128.5, 129.0, 129.4, 132.8, 133.0, 156.1, 173.7; HRMS (ESI) calcd. for C16H18NaO3 [M+Na]: 281.1154. found: 281.1150. The ester product obtained was dissolved in 1,4-dioxane. 6 N sodium hydroxide solution was added, and the reaction was heated to 60 C. After 2 h of reaction, the pH value was adjusted to 1 by adding 2 N hydrochloric acid. After removing the organic solvent under reduced pressure, 84 mg product naproxen was obtained by extraction with ethyl acetate, and the yield of hydrolysis was 92%.

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; Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences; Huang, Hanmin; Xia, Chungu; Xie, Pan; US2013/303798; (2013); A1;,
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