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. 22483-09-6, name is 2,2-Dimethoxyethanamine belongs to ethers-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below. Safety of 2,2-Dimethoxyethanamine

Benzyl chloroformate (231.3 g, 1.3 mol) was added gradually to a mixture of aminoacetaldehyde dimethyl acetal (152.0 g, 1.3 mol) in toluene (750 mL) and aqueous NaOH (72.8 g, 1.82 mol; in 375 mL of water) at 10-20 C. After the addition was complete, the mixture was stirred at ambient temperature for 4 h. The organic layer was separated, washed with brine (2×100 mL) and concentrated to provide the title compound.

The synthetic route of 22483-09-6 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Schrimpf, Michael R.; Sippy, Kevin B.; Ji, Jianguo; Li, Tao; Pace, Jennifer M.; Briggs, Clark A.; US2005/171079; (2005); A1;,
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Related Products of 2674-34-2, These common heterocyclic compound, 2674-34-2, name is 1,4-Dibromo-2,5-dimethoxybenzene, 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.

Boronate ester 10 (1.00g, 3.15mmol), dibromoarene 11 (310mg, 1.05mmol), and K2CO3 (1.88g, 13.6mmol) in toluene (40mL), EtOH (10mL), and H2O (5mL) was sparged with Ar for 1h. Pd(PPh3)4 (120mg, 0.10mmol) was added, the mixture was sparged for an addition 15min with Ar, and then refluxed for 16h. The reaction mixture was allowed to cool to rt and 30mL of H2O was added to the reaction. The reaction mixture was extracted with Et2O (3×30mL). The combined organics were dried with Na2SO4 and the solvent removed under vacuum. The product was isolated with column chromatography to afford a white/light yellow solid (506mg, 93%), mp 151-154C. 1H NMR (CDCl3): delta 7.83 (d, J=8.5Hz, 2H), 7.45-7.44 (m, 4H), 6.84 (s, 2H), 3.71 (s, 12H), 1.38 (s, 18H). 13C NMR (CDCl3): delta 168.7, 154.9, 150.3, 138.2, 130.6, 129.3, 128.9, 128.4, 124.3, 113.0, 56.0, 51.6, 35.0, 31.18. FTIR (cm-1): 1725.25. UV-vis (CH2Cl2) lowest E abs lambdamax [nm] ( [M-1cm-1]): 326 (10,609). Em. (CH2Cl2) lambdamax [nm]: 409. Anal. Calcd for C32H38O6: C, 74.11; H, 7.39. Found: C, 73.98; H, 7.38.

Statistics shows that 1,4-Dibromo-2,5-dimethoxybenzene is playing an increasingly important role. we look forward to future research findings about 2674-34-2.

Reference:
Article; Dressler, Justin J.; Miller, Sarah A.; Meeuwsen, Brian T.; Riel, Asia Marie S.; Dahl, Bart J.; Tetrahedron; vol. 71; 2; (2015); p. 283 – 292;,
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Synthetic Route of 437-83-2, A common heterocyclic compound, 437-83-2, name is 3-Fluoro-2-methoxyaniline, molecular formula is C7H8FNO, 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.

Step 1[00180j To a stirred solution of Intermediate 1(0.33 g, 1.61 mmol) in DMA (3 mL) was added 3-fluoro-2-methoxyaniline (0.27 g, 1.9 mmol) followed by NaHMDS (1M in THF, 4.83mL, 4.83 mmol). The reaction was stirred for 30 minutes and then water (30 mL) was gradually added resulting in the product crashing out as a precipitate. The product was collected by filtration, washed with additional water and then dried undervacuum providing Intermediate 15 (476 mg, 95% yield). LC retention time 3.22 mm [A]. MS(Ej m/z: 310 (MHj.

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; BRISTOL-MYERS SQUIBB COMPANY; MOSLIN, Ryan M.; LIN, Shuqun; WEINSTEIN, David S.; WROBLESKI, Stephen T.; ZHANG, Yanlei; TOKARSKI, John S.; WO2014/74660; (2014); A1;,
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Reference of 204452-91-5, The chemical industry reduces the impact on the environment during synthesis 204452-91-5, name is 7-(Dimethoxymethyl)-1,2,3,4-tetrahydro-1,8-naphthyridine, I believe this compound will play a more active role in future production and life.

A solution of 7-(dimethoxymethyl)-1 ,2,3,4-tetrahydro-1 ,8-naphthyridine (intermediate 4, 2 g, 9.60mmol) and diphenylcarbonate (4.11 g, 19.21 mmol) in THF (40 ml) at -15 C was treated withLHMDS (IM in THF, 13.3 ml, 13.3 mmol) over 0.5 h. The reaction mixture was quenched with sat.aq. NH4CI, extracted with EtOAc (2x). The combined organic layers were washed with brine, driedover Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified by normal phase chromatography (80 g silica gel cartridge, heptanes/EtOAc 100:0 to 25:75) to give the title compound as a pale yellow solid. 1H-NMR (400 MHz, DMSO-d6) 5 7.65 (d, I H), 7.46 – 7.38 (m, 2 H), 7.27 – 7.18 (m, 4H), 5.17 (s, I H), 3.87 – 3.80 (m, 2 H), 3.26 (s, 6 H), 2.83 (t, 2 H), 2.00-1.92(m,2H).

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, 7-(Dimethoxymethyl)-1,2,3,4-tetrahydro-1,8-naphthyridine, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; NOVARTIS AG; BUSCHMANN, Nicole; FAIRHURST, Robin Alec; FURET, Pascal; KNOePFEL, Thomas; LEBLANC, Catherine; MAH, Robert; NIMSGERN, Pierre; RIPOCHE, Sebastien; LIAO, Lv; XIONG, Jing; ZHAO, Xianglin; HAN, Bo; WANG, Can; WO2015/59668; (2015); A1;,
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Adding a certain compound to certain chemical reactions, such as: 707-07-3, name is (Trimethoxymethyl)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 707-07-3, Recommanded Product: (Trimethoxymethyl)benzene

General procedure: To a stirred solution of the respective N-carbamate-protected aminovicinal diol 4 (0.50 mmol, 1 equiv) in CH2Cl2 (10 mL, 0.05 M) were added BF3·OEt2 (50 muL, 0.050 mmol, 0.1 equiv, 1.0 M solution in CH2Cl2) and trimethyl orthobenzoate (0.13 mL, 0.75 mmol, 1.5 equiv) at r.t. The resulting mixture was refluxed or stirred at r.t. under N2 until TLC showed complete conversion of the substrate. The reaction was quenched with sat. aq NaHCO3 and extracted with EtOAc (2 ×). The combined organic layers were washed with brine, dried (MgSO4), filtered, and concentrated in vacuo. The residue was purified by flash chromatography on silica gel (hexane/EtOAc) to give the desired product 5.

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

Reference:
Article; Park, Heemin; Kwon, Yongseok; Shin, Jae Eui; Kim, Woo-Jung; Hwang, Soonho; Lee, Seokwoo; Kim, Sanghee; Synthesis; vol. 49; 12; (2017); p. 2761 – 2767;,
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Reference of 439814-87-6,Some common heterocyclic compound, 439814-87-6, name is 4-Bromo-1-(dimethoxymethyl)-2-fluorobenzene, molecular formula is C9H10BrFO2, 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.

To a solution of 4-bromo-1-dimethoxymethyl-2-fluorobenzene (4.53 g, 18.2 mmol) in tetrahydrofuran (50 mL) were added n-butyllithium (1.6 mol/L in hexanes; 15 mL) and dimethylformamide (2.1 mL, 27 mmol) sequentially at -78 C. under nitrogen atmosphere, and the mixture was stirred for 15 min. Water was added, and the mixture was extracted twice with ether. The organic layer was combined, washed with brine and dried on anhydrous sodium sulfate. The solvent was removed under reduced pressure, and the residue was purified by column chromatography (6:1 Hexane/ethyl acetate) to afford 4-dimethoxymethyl-3-fluorobenzaldehyde (2.26 g, 63%). 1H NMR (400 MHz, CDCl3) delta (ppm) 3.36 (s, 6H), 5.61 (s, 1H), 7.53 (dd, J=9.8, 1.6 Hz, 1H), 7.65 (dd, J=7.8, 1.6 Hz, 1H), 7.73 (t, J=7.8 Hz, 1H), 9.95 (d, J=2.0 Hz, 1H).

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-1-(dimethoxymethyl)-2-fluorobenzene, its application will become more common.

Reference:
Patent; Akama, Tsutomu; Holcomb, Ryan; Tolman, Richard L.; US2002/120144; (2002); A1;,
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Related Products of 352-67-0,Some common heterocyclic compound, 352-67-0, name is 1-Fluoro-4-(trifluoromethoxy)benzene, molecular formula is C7H4F4O, 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.

Step 5: 7-bromo-3-[4-(trifluoromethoxy)phenyl]benzo[e]benzimidazole A stirred solution of the product of step 4 (15 g, 0.06 mol) and 1 -fluoro-4- (trifluoromethoxy)benzene (21 g, 0.12 mol) and Cs2C03 (50 g, 0.15 mol) in DMF (250 mL) was heated to 160C for 16h. The reaction mixture was diluted with water and extracted with EtOAc. The organic layer was dried (MgS04) and concentrated to give 7- bromo-3-[4-(trifluoromethoxy)phenyl]benzo[e]benzimidazole 16 g (65% yield) which was used without further purification. LC/MS (method 1 ): Rt = 1.304 min; MS: m / z = 406.7 (M+).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 1-Fluoro-4-(trifluoromethoxy)benzene, its application will become more common.

Reference:
Patent; BASF SE; NARINE, Arun; BANDUR, Nina Gertrud; DICKHAUT, Joachim; KOLLER, Raffael; VON DEYN, Wolfgang; WACH, Jean-Yves; SALGADO, Vincent; WO2015/7682; (2015); 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. 93919-56-3, name is (4-(Trifluoromethoxy)phenyl)methanamine, A new synthetic method of this compound is introduced below., Computed Properties of C8H8F3NO

Step 2 Nitro-4-(4-trifluoromethoxy-benzylamino)-benzoic acid allyl ester; 5.0 g of 4-fluoro-3-nitro-benzoic acid allyl ester (22 mmol) were dissolved in 100 ml ethanol. 4.25 g of 4-(trifluoromethoxy)-benzylamine (22 mmol) were added and stirred at room temperature for 1 h. The product was extracted from methylenchloride/water and dried over sodium sulfate. The crude product was crystallized from isopropyl ether to result in yellow crystals (7.5 g). MS(ISP): 397.2 (M+H)+.

The synthetic route of 93919-56-3 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Bleicher, Konrad; Heinrich Nettekoven, Matthias; Pflieger, Philippe; Roever, Stephan; US2006/89367; (2006); A1;,
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Application of 7025-06-1,Some common heterocyclic compound, 7025-06-1, name is 1-Bromo-2-phenoxybenzene, molecular formula is C12H9BrO, 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.

A mixture of l-(3,4-dihydroisoquinolin-2(lH)-yl)-3-(3-(4,4,5,5-tetramethyl-l,3,2- dioxaborolan-2-yl)phenoxy)propan-2-ol (200 mg, 0.489 mmol), l-bromo-2-phenoxybenzene (120 mg, 0.489 mmol), Pd(dppf)Cl2 (36 mg, 0.049 mmol), K2C03 (202 mg, 1.47 mmol) in H20-dioxane (1 mL/ 3 mL) was stirred at 100°C under microwave heating for 15 min. The solvent was removed and the crude product purified by prep-HPLC to afford the title compound as the formate salt (33 mg, 15percent). 1H NMR (400 MHz, MeOD): delta 8.46 (s, 1H), 7.49 -7.22 (m, 9H), 7.17-7.11 (m, 3H), 7.04 – 6.98 (m, 2H), 6.92 – 6.90 (m, 1H), 6.87- 6.84 (m, 1H), 4.43- 4.37 (m, 1H), 4.28 (s, 2H), 3.98 (d, J = 5.2 Hz, 2H), 3.41 (t, J = 6.4 Hz, 2H), 3.25-3.13 (m, 4H)ppm; ESI-MS (m/z): 452.3 [M+l] +.

The synthetic route of 7025-06-1 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; EPIZYME, INC.; DUNCAN, Kenneth, W.; CHESWORTH, Richard; MUNCHHOF, Michael, John; JIN, Lei; WO2014/100695; (2014); 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 111-95-5 as follows. category: ethers-buliding-blocks

To a 0 C solution of compound 1(300 mg, 0.73 mmol), HATLI (698 mg,1.84 mmol), HOBt (205 rng, 1.84 rnmol) and DIPEA (379 mg, 2.79 mmol) in 3 rnLof DMF was added compound 2 (139 mg, 1.35mmol), The mixture was stirred at the room temperature for I h. Then the resulting solution was diluted with water (15 rnL and ethyl acetate (15 rnL. The layers were separated and the aqueous phase was extracted with ethyl acetate (15 rnL x 2). The combined organic layers weredried over anhydrous Na2SO4, concentrated and the residue was purified by flash column on silica gel eluted with petroleum ether and EtOAc to give the compound 3 (170 mg, 35%) as yellow solid. LCMS (M+H) m/z: cacld 638.8, found 638.9.

According to the analysis of related databases, 111-95-5, the application of this compound in the production field has become more and more popular.

Reference:
Patent; CLEAVE BIOSCIENCES, INC.; ZHOU, Han-Jie; WUSTROW, David; WO2014/66506; (2014); A2;,
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