Ethers-buliding-blocks

Related Products of 14804-31-0,Some common heterocyclic compound, 14804-31-0, name is 4-Bromo-1-methoxy-2-methylbenzene, molecular formula is C8H9BrO, 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: To a solution of compound 1a-e (10.0 mmol,1.0 eq) in anhydrousTHF (20 mL) was slowly added n-BuLi (6 mL of 2.5 M solution inhexane, 15.0 mmol, 1.5 eq) at 78 C. The mixture was stirred for1 h and triisopropyl borate (50.0 mmol, 5.0 eq) was added by syringe.The solutionwas stirred for another 1 h and allowed towarmto 25 C overnight. The reactionwas cooled to 0 C, followed by thesequential addition ofwater (5 mL) and 2N HCl (5 mL). After 10 min,an additional 35 mL of 2N HCl was added and the mixture wasfurther stirred for 30 min. The mixture was extracted with ethylacetate (20 mL * 3) and the combined organic layers wereconcentrated to a thick oil under reduced pressure. Crystallizationwith cold hexane yielded a white solid.

The synthetic route of 14804-31-0 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Sang, Yali; Han; Pannecouque, Christophe; De Clercq, Erik; Zhuang, Chunlin; Chen; European Journal of Medicinal Chemistry; vol. 182; (2019);,
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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. 102-52-3, name is 1,1,3,3-Tetramethoxypropane, This compound has unique chemical properties. The synthetic route is as follows., category: ethers-buliding-blocks

Example 22; Part A:To a solution of 4-(methylsulfonyl)phenylhydrazine (5.0 g, 26.8 mmol, 1.00 equiv) and 1 ,1 ,3,3-tetramethoxypropane (4.4 ml_, 26.8, 1.0 equiv) in ethanol (37 ml_) at rt was added concentrated HCI (2.8 mL). The resulting solution was heated at reflux for 1 hr, cooled to 0 0C and filtered to give 1-(4-methanesulfonyl-phenyl)-1/-/- pyrazole as a yellow solid (4.73 g, 79%). LCMS: (MH)+ = 223.1 (1.19 min).

Chemical properties determine the actual use. Each compound has specific chemical properties and uses. We look forward to more synthetic routes in the future to expand reaction routes of 102-52-3.

Reference:
Patent; SCHERING CORPORATION; WO2008/82487; (2008); A2;,
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Synthetic Route of 6358-77-6, A common heterocyclic compound, 6358-77-6, name is 5-Bromo-2-methoxyaniline, molecular formula is C7H8BrNO, 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.

Roundbottom flask is charged with 5-bromo-2-methylaniline ( 100.00 mg; 0.54 mmol; 1 .0 eq), methanol (1.5 mL), 37 % formaldehyde solution in methanol (289.18 mg; 3.56 mmol; 2.40 eqf.) and acetic acid (104.68 mg; 1.29 mmol; 2.40 eq.). RM is stirred at room temperature for 10 minutes. After this time RM is cooled down to 0C and sodiumcyanoborohydride (70.93 mg; 1 .13 mmol; 2.10 eqf.) is added. Reaction mixture is stirred in this temperature for 1 h. Then the solvent is evaporated and reaction is quenched with saturated aqueous solution of NaHC03 (5 mL) and extracted with DCM ( 3×5 mL). Combined organic extracts are washed with water (2×10 mL). Organic solvent is then evaporated and crude product is further purified by FCC(DCM/EtOAc, gradient) to 5-bromo-N,N,2-trimethylaniline (74.20 mg; yield 61.6 %; 95.5 % by UPLC) as a colorless oil.

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; SELVITA S.A.; FABRITIUS, Charles-Henry Robert Yves; NOWAK, Mateusz Oktawian; WIKLIK, Katarzyna Anna; SABINIARZ, Aleksandra Barbara; BIE?, Marcin Dominik; BUDA, Anna Ma?gorzata; GUZIK, Pawel Szczepan; JAKUBIEC, Krzysztof Roman; MACIUSZEK, Monika; KWIECI?SKA, Katarzyna; TOMCZYK, Mateusz Micha?; GA??ZOWSKI, Micha? Miko?aj; GONDELA, Andrzej; DUDEK, ?ukasz Piotr; (681 pag.)WO2016/180536; (2016); A1;,
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Related Products of 645-36-3, 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. 645-36-3, name is 2,2-Diethoxyethanamine belongs to ethers-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

Example 1.3. Preparation of SIK inhibitor II-1[00385] In an exemplary experiment, SIK inhibitor II-1 was prepared according to the method shown in Scheme 2. N-(2,6-dimethylphenyl)-1H-imidazol-2-amine[00386] To a solution of cyanogen bromide (25 g, 236.03 mmol) in hexane (80 mL) was added a solution of the amino-acetaldehyde diethyl acetal (34.3 mL, 236.03 mmol) in diethyl ether (80 mL) at room temperature. The resulting mixture was stirred overnight. A white solid was formed and was removed by filtration and washed with diethyl ether. The filtrate was concentrated and purified by flash chromatography on silica gel (eluted with 0/100 to 5/95 methanol/dichloromethane) to afford N-(2,2-diethyloxyethyl)carbodiimide (27 g, 72% yield) as a bright yellow oil. Rt (retention time) = 1.82 min; MS m/z: 159.20 [M+1].

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

Reference:
Patent; DANA-FARBER CANCER INSTITUTE, INC.; THE BROAD INSTITUTE, INC.; THE GENERAL HOSPITAL CORPORATION D/B/A MASSACHUSETTS GENERAL HOSPITAL; PRESIDENT AND FELLOWS OF HARVARD COLLEGE; SHAMJI, Alykhan; SUNDBERG, Thomas; GRAY, Nathanael; XAVIER, Ramnik; SCHREIBER, Stuart, L.; CHOI, Hwan, Geun; LIANG, Yanke; (315 pag.)WO2016/23014; (2016); A2;,
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Related Products of 7664-66-6, As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 7664-66-6 name is 4-Isopropoxyaniline, This compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below.

To a solution of 4-isopropoxyaniline (151 mg) in DCM (5 mL) at 0 C was added pyridine (0.243 mL) followed by 3-carbamoyl-4-hydroxy-5-methylbenzene-1 -sulfonyl chloride (lnt-4, 250 mg). The reaction mixture was allowed to warm to RT and was stirred for 16 hr. The reaction mixture was diluted with water (30 mL) and extracted with DCM ( 2 x 50 mL). The combined DCM extracts were washed with saturated brine (25 mL), dried over sodium sulfate, filtered and concentrated under reduced pressure to afford the crude product. The crude product was washed with diethyl ether (2 x 10 mL) and dried under vacuum to afford the titled compound (212 mg). LCMS m/z 365.09 (M+H)+. NMR (400MHz, DMSO-c/6) delta = 14.33 (br s, 1 H), 9.63 (s, 1 H), 8.74 (br s, 1 H), 8.10 (d, J = 2.2 Hz, 2H), 7.60 (d, J = 1 .3 Hz, 1 H), 6.98 – 6.91 (m, 2H), 6.80 – 6.74 (m, 2H), 4.47 (td, J=6.0, 12.1 Hz, 1 H), 2.15 (s, 3H), 1 .19 (d, J = 5.9 Hz, 6H).

At the same time, in my other blogs, there are other synthetic methods of this type of compound, 4-Isopropoxyaniline, and friends who are interested can also refer to it.

Reference:
Patent; GLAXOSMITHKLINE INTELLECTUAL PROPERTY DEVELOPMENT LIMITED; ADAMS, Jerry Leroy; DUFFY, Kevin J.; GRAYBILL, Todd L.; MOORE, Michael Lee; NEIPP, Christopher E.; RALPH, Jeffrey M.; SQUIRE, Michael Damien; (304 pag.)WO2017/153952; (2017); A1;,
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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. 2525-16-8, name is 7-Methoxy-3,4,5,6-tetrahydro-2H-azepine belongs to ethers-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below. Application In Synthesis of 7-Methoxy-3,4,5,6-tetrahydro-2H-azepine

To a solution of ethyl N-[3-(3-amidinophenyl)-2-(E)-propenyl]-N-[3-chloro-4-(piperidin-4-yloxy)phenyl]sulfamoylacetate dihydrochloride (0.75 g) obtained in example 47(a) in ethanol (25 ml) were added successively 7-methoxy-3,4,5,6-tetrahydro-2H-azepine (0.39 g) and triethylamine (0.85 ml) at room temperature, and the resulting mixture was stirred at room temperature for 7 hours and then allowed to stand at room temperature for 15 hours.. Because of the slow progress of the reaction, 7-methoxy-3,4,5,6-tetrahydro-2H-azepine (0.22 g) and triethylamine (0.51 ml) were furthermore added successively, and the resulting mixture was stirred at 45C for 12 hours, allowed to stand at room temperature for 11 hours and then furthermore stirred at 45C for 10 hours.. After stirring, to the reaction mixture was added a 4N solution of hydrogen chloride in dioxane (5 ml) and the resulting mixture was evaporated in vacuo.. The residue obtained was purified by preparative HPLC (YMC-Pack ODS-A; YMC, eluent: 25 % acetonitrile/water).. Subsequently, to a solution of the amorphous solid obtained in ethanol (5 ml) was added a 4N solution of hydrogen chloride in dioxane (2 ml), and the resulting mixture was evaporated to dryness in vacuo.. The residue obtained was dissolved in water and then lyophilized to afford the title compound (0.30 g, yield: 35 %) as a colorless amorphous solid. 1H NMR (400MHz, DMSO-d6) delta ppm: 1.21 (3H, t, J=7.0), 1.52-1.63 (4H, m), 1.68-1.81 (4H, m), 2.04-2.10 (2H, m), 2.84-2.88 (2H, m), 3.36-3.42 (2H, m), 3.62-3.91 (4H, m), 4.18 (2H, q, J=7.0), 4.41 (2H, s), 4.46 (2H, d, J=6.0), 4.81-4.87 (1H, m), 6.44 (1H, dt, J=16.0, 6.0), 6.57 (1H, d, J=16.0), 7.32 (1H, d, J=9.0), 7.40 (1H, dd, J=9.0, 2.5), 7.52- 7.59 (2H, m), 7.66-7.74 (2H, m), 7.88 (1H, s); IR (KBr, cm-1): 1738, 1674, 1628, 1353, 1156.

The synthetic route of 2525-16-8 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Sankyo Company, Limited; EP1375482; (2004); A1;,
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Adding a certain compound to certain chemical reactions, such as: 1462-37-9, name is ((2-Bromoethoxy)methyl)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 1462-37-9, Recommanded Product: ((2-Bromoethoxy)methyl)benzene

To a solution of 3-hydroxybenzaldehyde (2.90 kg, 23.75 mol), and ((2- bromoethoxy)methyl)benzene (4.26 kg, 19.79 mol) in DMF (9.3 L) was added K2C03 (3.83 kg, 27.70 mol). The reaction mixture was stirred at r.t. for 24 h. Water (15 L) and tert-butyl methyl ether (23 L) were added to the reaction mixture. The organic phase was separated and washed with 1 N NaOH (2X15 L) and water (15 L) sequentially, and then concentrated to a minimum. Ethanol (23 L) was added and the solution was concentrated under vacuum to afford the desired product (4.7 kg, 93percent) as a colourless oil. 1 H NMR (400 MHz, DMSO-c/6): 9.98 (s, 1 H), 7.55-7.52 (m, 2H), 7.46 (s, 1 H), 7.36-7.34 (m, 4H), 7.32-7.26 (m, 2H), 4.57 (s, 2H), 4.25-4.22 (t, J = 4.4 Hz, 2H), 3.80-3.78 (t, J = 4.4 Hz, 2H). LCMS: [M+Na]+ = 279

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; GLAXOSMITHKLINE INTELLECTUAL PROPERTY (NO.2) LIMITED; ANACOR PHARMACEUTICALS, INC.; ALLEY, M.R.K. (Dickon); HERNANDEZ, Vincent S.; PLATTNER, Jacob J.; LI, Xianfeng; BARROS-AGUIRRE, David; GIORDANO, Ilaria; WO2015/21396; (2015); A2;,
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Related Products of 36449-75-9, 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. 36449-75-9, name is 1-(2-Bromoethyl)-2-methoxybenzene belongs to ethers-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

General procedure: General synthetic procedure for the final products.The appropriately substituted 4-phenethylpiperidine (6)(0.5 mmol) was dissolved in acetonitrile (5 mL) and K2CO3(0.75 mmol) and the appropriate phenethyl bromide (7) (0.5 mmol) added. The reaction mixture was refluxedfor 8 h.After completion of the reaction (monitored by TLC), the reaction mixture was cooled to ambient temperature and filtered through a Celite pad. The filtrate was concentrated under vacuum to obtain the desired crude product. The crude product was further purified by column chromatography (silica gel: 3-5% methanol in dichloromethane) to afford the corresponding 1,4-diphenethylpiperidine (8a-8y) in good yield (75-80 %), which was then converted to hydrochloride salt by treatment with 2M HCl in diethyl ether.Compounds12a-12dwere synthesized using the same procedure as above, except that an appropriately substituted 4-benzylpiperidine (11) was utilized in place of compound6.

The synthetic route of 1-(2-Bromoethyl)-2-methoxybenzene has been constantly updated, and we look forward to future research findings.

Reference:
Article; Nickell, Justin R.; Culver, John P.; Janganati, Venumadhav; Zheng, Guangrong; Dwoskin, Linda P.; Crooks, Peter A.; Bioorganic and Medicinal Chemistry Letters; vol. 26; 13; (2016); p. 2997 – 3000;,
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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. 41365-75-7, name is 1-Amino-3,3-diethoxypropane, A new synthetic method of this compound is introduced below., HPLC of Formula: C7H17NO2

Part A; A solution of l-amino-3,3-diethoxypropane (5.00 mL, 30.9 mmol) in 5 niL of tetrahydrofuran (TEtaF) was treated with triethylamine (4.51 mL, 34.0 mmol) under an atmosphere of nitrogen and cooled to 0 0C. The reaction mixture was then treated dropwise with a solution of di-tert-butyl dicarbonate (7.42 g, 34.0 mmol) in 25 mL of TEtaF. The reaction mixture was stirred for 2 h at 0 0C and then allowed to come to room temperature. After 15 h, the reaction mixture was concentrated under reduced pressure, dissolved in ethyl acetate, washed with water (2X) and brine, dried over Na2SO4, filtered and concentrated under reduced pressure to yield tert-butyl (3,3-diethoxypropyl)carbamate (8.40 g) as a clear, faintly yellow oil.

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; 3M INNOVATIVE PROPERTIES COMPANY; WO2006/28451; (2006); 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. 1017779-69-9, name is 3-Fluoro-4-(trifluoromethoxy)aniline, A new synthetic method of this compound is introduced below., HPLC of Formula: C7H5F4NO

[0202j meta-Fluoro-4-(trifluoromethoxy)aniline (500 mg, 2.56 mmol) and triethylamine (388 mg, 3.84 mmol) were dissolved in CH2C12 (4 mL) and was added dropwisely into a solution of triphosgene (341 mg, 1.15 mmol) dissolved in CH2C12 (5 mL) at -78 C. The reaction mixture was stirred at 0 C for lh and was then cooled to -78 C. 4-amino-1-Boc- piperidine (769 mg, 3.84 mmol) and triethylamine (388 mg, 3.84 mmol) were dissolved in CH2C12 (4 mL) and the suspension was added dropwisely to the reaction mixture at -78 C. The reaction mixture was stirred at rt for 2h. The reaction was quenched by addition of water. The organic layer was isolated and the organic layer was further washed by HC1 solution (1M) for 4 times. The organic layer was dried over anhydrous magnesium sulfate and concentrated in vacuo yielding final crude product (1.05 g, 86% pure, 2.13 mmol, 83.4% yield). The impurities 38 were purified by column chromatography using EtOAc:Hex (1:1).[0203j ?H NMR (d6-DMSO, 300 Mhz): A: 8.77 (s, 1H), 7.66 (dd, J 13.5, 2.4 Hz, 1H), 7.38 (t, J 8.1 Hz, 1H), 7.10 (d, J 9Hz, 1H), 6.33 (d, J 7.5 Hz, 1H), 3.81 (d, J= 12.9 Hz, 2H), 3.6-3.8 (m, 1H), 2.8-3.0 (m, 2H), 1.78 (dd,J= 12.3Hz, 3.3Hz, 2H), 1.40 (s, 9H), 1.2-1.4 (m, 2H); 38: 9.28 (s, 1H), 7.69 (dd, J= 14.9, 2.4 Hz, 1H), 7.46 (t, J 9Hz, 1H), 7.2-7.3 (m, 1H)

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; EICOSIS, LLC; HAMMOCK, Bruce, D.; LEE, Kin, Sing, Stephen; INCEOGLU, Ahmet, Bora; WO2015/148954; (2015); A1;,
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