Month: September 2021

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. 31465-36-8, name is 4-(4-Methoxyphenoxy)aniline, A new synthetic method of this compound is introduced below., Recommanded Product: 31465-36-8

PREPARATION 11 2-Amino-6-(4-methoxyphenoxy)benzothiazole Following a procedure similar to that described in Preparation 1, 13.50 g of the title compound were obtained as light brown fine crystals, melting at 165-167 C., from 15.00 g of 4-(4-methoxyphenoxy)aniline.

The synthetic route of 31465-36-8 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Sankyo Company, Limited; US5002942; (1991); A;,
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Application of 16452-01-0, The chemical industry reduces the impact on the environment during synthesis 16452-01-0, name is 3-Methoxy-4-methylaniline, I believe this compound will play a more active role in future production and life.

g. 2-bromo-5-methoxy-4-methyl-aniline. To a solution of 3-methoxy-4-methyl-aniline (8.19 g, 59.71 mmol) in dichloromethane (200 mL), was added tetrabutylammonium tribromide (28.79 g, 59.71 mmol) and the reaction mixture was stirred at room temperature for 2.5 hrs. Aqueous NaHCO3 was added and the layers separated. The aqueous layer was further extracted with dichloromethane and the combined organics washed successively with water and brine, dried over MgSO4, filtered and evaporated. The residue was chromatographed on silica gel (20% ethyl acetate in hexane) to give 11.05 g of 2-bromo-5-methoxy-4-methyl-aniline (85% yield). 1H NMR (300 MHz; CDCl3): 2.09 (s, 3 H), 3.75 (s, 3 H), 3.95 (br s, 1 H), 6.27 (s, 1 H), 7.13 (s, 1 H).

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

Reference:
Patent; Pfahl, Magnus; Tachdjian, Catherine; Spruce, Lyle W.; Al-Shamma, Hussien A.; Boudjelal, Mohamed; Fanjul, Andrea N.; Wiemann, Torsten R.; Pleynet, David P.M.; US2003/144329; (2003); A1;,
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

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. 4698-11-7, name is 10-Methoxy-5H-dibenzo[b,f]azepine belongs to ethers-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below. SDS of cas: 4698-11-7

Following the procedure of Example 1, but using 30% aqueous formic acid instead of the same volume of 10% aqueous sulfuric acid, the yield is 58.0 (76.6% on theoretical).

The synthetic route of 4698-11-7 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Milanese, Alberto; EP1600443; (2005); A1;,
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Reference of 19056-40-7, 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. 19056-40-7, name is 4-Bromo-3-methoxyaniline belongs to ethers-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

To an ice cooled solution of 4-bromo-3-methoxyaniline (3.00 g, 14.85 mmol) in pyridine(20 mL) was added (E/Z)-3-ethoxyacryloyl chloride (2.98 g, 22.27 mmol) over a period of 5 mm.and stirred at RT for 16 h. After completion of the reaction, the reaction mixture was diluted with ice cooled water and extracted with EtOAC (150 mL x 2). The combined organic layer was washed with aq. iN HC1 (100 mL), water (150 mL), brine (100 mL), dried over sodium sulphate and concentrated. The residue was used for next step without further purification (3.20 g, 72percent).1H NMR (400 MHz, DMSO-d6): oe 9.86 (s, 1H), 7.54?7.42 (m, 3H), 7. 12?7.08 (m 1H), 5.50 (d,J=12.7 Hz, 1H), 3.95 (q, J=6.9 Hz, 2H), 3.80 (s, 3H), 1.27 (t, J=7.3 Hz, 3H); LC-MS: mlz 301.1(M+1).

The synthetic route of 4-Bromo-3-methoxyaniline has been constantly updated, and we look forward to future research findings.

Reference:
Patent; AURIGENE DISCOVERY TECHNOLOGIES LIMITED; SAMAJDAR, Susanta; ABBINENI, Chandrasekhar; SASMAL, Sanjita; HOSAHALLI, Subramanya; WO2015/104653; (2015); A1;,
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

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. 1836-62-0, name is 2-(2-Methoxyphenoxy)ethylamine, A new synthetic method of this compound is introduced below., Formula: C9H13NO2

(f) A mixture comprising 2-(2-methoxyphenoxy)ethylamine (10 g, 59.9 mmol), diisopropylethylamine (13.9 mL, 81.6 mmol) and dichloromethane (80 mL) was cooled to 0 C. and then a solution of 3-methoxy-4-nitrobenzoyl chloride (11.76 g, 54.4 mmol) in dichloromethane (50 mL) was added dropwise. The mixture was allowed to warm to 23 C. over two hours, quenched with aqueous hydrochloric acid (3M, 20 mL), washed with water (3*20 mL), dried (Na2SO4) and concentrated in vacuo to provide N-[2-(2-methoxyphenoxy)ethyl]-3-methoxy-4-nitrobenzamide (14 g, 74% yield) an off white solid; MS (PB-PCI) C17H18N2O6 m/e calc 346.34; found 347 (MH+).

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; Church, Timothy J.; Cutshall, Neil Scott; Gangloff, Anthony R.; Jenkins, Thomas E.; Linsell, Martin S.; Litvak, Joane; Rice, Kenneth D.; Spencer, Jeffrey R.; Wang, Vivian R.; US2001/53779; (2001); A1;,
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

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. 103-50-4, name is Benzyl ether belongs to ethers-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below. category: ethers-buliding-blocks

General procedure: A mixture of azobenzene 1 (0.25 mmol), dibenzyl ether 2 (0.75 mmol), TBHP (1.5 mmol), and DCE (1 mL) was charged into a sealed tube. After stirring vigorously at 120 C for 24 h, the mixture was evaporated under vacuum. The corresponding product 7 was isolated by silica gel column chromatography with a PE/EtOAc mixture as eluent.

The synthetic route of 103-50-4 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Hong, Gang; Aruma, Alfred Njasotapher; Zhu, Xiaoyan; Wu, Shengying; Wang, Limin; Synthesis; vol. 48; 8; (2016); p. 1147 – 1158;,
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

2674-34-2, name is 1,4-Dibromo-2,5-dimethoxybenzene, 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. category: ethers-buliding-blocks

1, 4-diamino -2, 5- […] (1, 4-diamino-2, 5-dimethoxybenzene) (16.9mmol) and 30 parts by weight of diethyl ether (70 ml) at -78 C 1.55N of agitating n-BuLi (16.8mmol) in 11 ml of hexane of. input additional are mixed together. 1.5 in the maintaining -78 C mixture adaptation stirring time. Dichloro d methyl thread column (8.4mmol) and 30 parts by weight of diethyl ether in the -78 C a 2 ml is closed after charging additional adaptation stirring during night at room temperature. After 1.5 reflux time was are input, in water and and stirring. possibility layer hexane and water extraction of water and balancer in a washing machine after the washing phosphorous in the magnesium sulfate expresses water after to remove, is every. D-1 compounds via fractional distillation (45% yield) is obtained.

The synthetic route of 2674-34-2 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; LG DISPLAY CO., LTD.; SIN, IN AEY; LEE, SUNG JAE; BIN, JONG KWAN; LEE, BANG SOOK; SAW, BO MIN; YU, YOUNG JU; (45 pag.)KR2015/64794; (2015); A;,
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Adding a certain compound to certain chemical reactions, such as: 74137-36-3, name is 1,3-Dibromo-5-methoxybenzene, 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 74137-36-3, Quality Control of 1,3-Dibromo-5-methoxybenzene

General procedure: 2-Ethylhexyl 3-((3-bromo-5-methoxyphenyl)thio)propanoate was synthesised according to general procedures GP12 – from 1 ,3-dibromo-5-methoxybenzene (3.0 g, 1 1 .3 mmol), Pd2(dba)3 (0.25 mg, 2.5 mol%), Xantphos (0.32 mg, 5 mol%), 2-ethylhexyl-3-mercaptopropionate (1 .96 g, 9.02 mmol), DIPEA (4.15 ml_, 23.9 mmol) and toluene (30 ml_); 1 10 C, 8 h. Chromatography (12% EtOAc in hexane) afforded a pale orange solid (2.4 g, 66%). NMR (400 MHz, DMSO-c/6) delta 7.05 (t, J = 1 .6 Hz, 1 H), 6.99 (d, J = 2.0 Hz, 1 H), 6.87 (t, J = 2.0 Hz, 1 H), 3.95 (d, J = 5.6 Hz, 2H), 3.76 (s, 3H), 3.21 (t, J = 6.4 Hz, 2H), 2.63 (t, J = 6.8 Hz, 2H), 1 .52-1 .50 (m, 1 H), 1 .29-1 .24 (m, 8H), 0.87-0.82 (m, 6H). LCMS (ESI, -ve) m/z 217/219 (M-C11 H21O2)-. General procedures GP12 00690] Condition A – a mixture of bromide GP12_1 , Pd2(dba)3 (5 mol%), Xantphos (10 mol%), RSH (1 .0-1 .2 equiv.), NaO’Bu (1 .0-1 .2 equiv.) and ‘BuOH/toluene (1 :5) was degassed with argon and then stirred at 100 C for 16 h. After cooling to rt, the suspension was filtered through celite, washed with DCM and the solvent was removed under reduced pressure. Alternatively, the mixture was centrifuged at 2500 RPM for 5 minutes. The solution was decanted and concentrated under reduced pressure. The crude was purified by chromatography to afford sulfide GP12_2. (1128) [00691] Condition B – same as condition A, with DIPEA used instead of NaO’Bu and toluene used instead of ‘BuOH/toluene.

At the same time, in my other blogs, there are other synthetic methods of this type of compound, 1,3-Dibromo-5-methoxybenzene, and friends who are interested can also refer to it.

Reference:
Patent; THE INSTITUTE OF CANCER RESEARCH: ROYAL CANCER HOSPITAL; SPRINGER, Caroline; MARAIS, Richard; NICULESCU-DUVAZ, Dan; LEUNG, Leo; SMITHEN, Deborah; CALLENS, Cedric; TANG, Haoran; (403 pag.)WO2017/141049; (2017); A1;,
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Electric Literature of 54149-17-6, 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. 54149-17-6, name is 1-Bromo-2-(2-methoxyethoxy)ethane belongs to ethers-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

Under an argon atmosphere, sodium hydride (2.41g, 100 mmol) was suspended in THF (20 mL). Pyrrolidine (3.50 g, 50 mmol) dissolved in 30 mL of THF was added dropwise to the solution. The mixture was stirred at 25C for 15 h, then 1-bromo-2-(2-methoxyethoxy)ethane (9.15 g, 50 mmol) was added to the solution. After stirring at 70C for 15 h, the resulting suspension was filtered to remove the white precipitate. The solvent was removed from the filtrate by rotary evaporation to give the yellow crude product. The crude product was purified by distillation under reduced pressure. The fraction collected at 120C under a reduced pressure of 1 mm Hg afforded the pyrrolidine derivative 1-(2-(2-methoxyethoxy)ethyl)pyrrolidine (OE2py) as a colorless oil (yield=6.16 g, 72%). 1H NMR (CDCl3 relative to tetramethylsilane (TMS), 300 MHz): delta (ppm)=3.41 (m, 6H), 3.38 (s, 3H), 2.69 (t, J=5.2Hz, 2H), 2.55 (t, J=5.1Hz, 4H), 1.76 (m, 4H). MS (FAB+): m/z=174.2.

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-Bromo-2-(2-methoxyethoxy)ethane, other downstream synthetic routes, hurry up and to see.

Reference:
Article; Horiuchi, Shunsuke; Zhu, Haijin; Forsyth, Maria; Takeoka, Yuko; Rikukawa, Masahiro; Yoshizawa-Fujita, Masahiro; Electrochimica Acta; vol. 241; (2017); p. 272 – 280;,
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Adding a certain compound to certain chemical reactions, such as: 19500-02-8, name is 3-Methoxy-2-methylaniline, 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 19500-02-8, Recommanded Product: 19500-02-8

Reference Production Example 4 (0558) A mixture of 15.0 g of 3-amino-1-methoxy-2-methylbenzene, 48.7 g of triphosgene, and 350 ml of toluene was stirred with heating under reflux for 3 hours. The reaction mixture allowed to cool was concentrated under reduced pressure to obtain 17.0 g of 1-methoxy-3-isocyanato-2-methylbenzene. 1-Methoxy-3-isocyanato-2-methylbenzene (0559) (0560) 1H-NMR (CDCl3) delta (ppm): 7.09 (1H, t, J=8.2 Hz), 6.72 (1H, dd, J=0.5, 8.0 Hz), 6.69 (1H, d, J=8.2 Hz), 3.82 (3H, s), 2.19 (3H, s).

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; SUMITOMO CHEMICAL COMPANY, LIMITED; HOU, Zengye; TAKAHASHI, Teruki; (156 pag.)US2016/174558; (2016); A1;,
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem