Category: 7664-66-6

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. 7664-66-6, name is 4-Isopropoxyaniline, A new synthetic method of this compound is introduced below., name: 4-Isopropoxyaniline

A mixture of 4-bromo-2-fluoro-l-nitrobenzene (0.39, 1.36 mmol), 4-(propan-2-yloxy)aniline (0.229,1 .43 mmol) and K2C03 (0.38 g, 2.73 mmol) in DMF (3 mL) was stirred at 90 C for 5h. Then thereaction mixture was diluted with EtOAc and washed with 5% aq. LiCI solution. The organic phasewas dried over Na2504, filtered, and concentrated in vacuo. The residue was purified by SiC2 columnchromatography (hexanes I EtOAc from 30:1 to 20:1) to give 0.43g (90%) of the product as orangesolid.1H NMR (500 MHz, CDCI3) O 9.37 (5, 1H), 8.04 (d, 1H), 7.12-7.17 (m, 3H), 6.93-6.97 (m, 2H), 6.81 (dd, 1H), 4.56 (sep, 1H), 1.36 (d, 6H).

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; ARISAN THERAPEUTICS INC.; PLEWE, Michael; BROWN, Eric; GANTLA, Vidyasagar; HENKEL, Gregory; MCCORMACK, Kenneth; SOKOLOVA, Nadzeda V.; SHIN, Young-Jun; (147 pag.)WO2018/13430; (2018); A2;,
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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. 7664-66-6, name is 4-Isopropoxyaniline, This compound has unique chemical properties. The synthetic route is as follows., Quality Control of 4-Isopropoxyaniline

General procedure: N,N’-di(2-fluorophenyl)-4-methoxyl-isophthalamide(1a): Equipped a stirrer in a three-necked flask (100 ml), to a mixture of 2-fluoroaniline (1.11 g, 10.0 mmol),anhydrous tetrahydrofuran (15 ml) and dry pyridine (1 ml), dropwise added 4-methoxyl-isophthaloyl dichloride (1.17 g, 5.0 mmol) which had been dissolved in dry tetrahydrofuran (10 ml). After the mixture reaction at room temperature for 8 h under continuous stirring, the excess tetrahydrofuran was distilled off in vacuum. The residue was recrystallized by acetone. Its melting point is 204-206 C, and yield is 67%. The other compounds 1b-1j, 2a-2k, 3a-3l and 4a-4h were prepared in the same manner.

According to the analysis of related databases, 7664-66-6, the application of this compound in the production field has become more and more popular.

Reference:
Article; Liu, Xiu Jie; Shi, Xin Xin; Zhong, Yong Liang; Liu, Ning; Liu, Kai; Bioorganic and medicinal chemistry letters; vol. 22; 21; (2012); p. 6591 – 6595,5;,
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Electric Literature 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.

The compound obtained in Step 5 (19 mg) was dissolved in dioxane (1 mL), 4 isopropoxyphenylaniline (12mg) and 4N hydrochloric acid dioxane (64muL), and the mixture was stirred for 20 minutes in a microwave irradiation under 180 . The reaction solution was extracted three times with chloroform after adding a saturated aqueous sodium hydrogen carbonate solution, and the organic layer was concentrated after dried over sodium sulfate. The resulting residue to give the title compound purified by silica gel column chromatography (13mg, 57%).

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; TAIHO PHARMACEUTICAL COMPANY LIMITED; MINAMIGUCHI, KAZUHISA; OKAJIMA, SHIGEO; AOKI, SHINICHI; ASAI, MASANORI; ASAI, TAKAHIRO; YAMANAKA, HIROYOSHI; DOHI, SUGURU; (149 pag.)JP5851663; (2016); B1;,
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Reference 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 mixture of 3-chloro-6-methyl-4-(4-methylbenzyl)pyridazine (200 mg, 0.859 mmol), 4-isopropoxyaniline (169 mg, 1.12 mmol), 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene (112 mg, 0.193 mmol), cesium carbonate (560 mg, 1.72 mmol) and dioxane (4 mL) was added palladium acetate (28.9 mg, 0.129 mmol) under nitrogen atmosphere, and the resulting mixture was heated at reflux for 1 hour. To the reaction mixture were added water (200 mL) and saturated aqueous ammonium chloride (5 mL). The resulting mixture was extracted with ethyl acetate (200 mL). The extract was washed by brine (200 mL), dried over anhydrous magnesium sulfate, and concentrated in vacuo. The resulting residue was purified by silica gel column chromatography (ethyl acetate/hexane) to give 3-(4-isopropoxyphenylamino)-6-methyl-4-(4-methylbenzyl)pyridazine (187 mg, Yield: 62.7%) as yellow amorphous. 1H-NMR (delta ppm TMS/CDCl3): 1.31 (6H, d, J=6.1 Hz), 2.37 (3H, s), 2.56 (3H, s), 3.84 (2H, s), 4.46 (1H, sep, J=6.1 Hz), 5.96 (1H, s), 6.80 (2H, d, J=8.3 Hz), 7.08 (2H, d, J=7.9 Hz), 7.18 (2H, d, J=7.9 Hz), 7.34 (2H, d, J=8.3 Hz).

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; Shionogi & Co., Ltd.; KAI, Hiroyuki; ENDOH, Takeshi; JIKIHARA, Sae; ASAHI, Kentaro; HORIGUCHI, Tohru; EP2604260; (2013); 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. 7664-66-6, name is 4-Isopropoxyaniline, A new synthetic method of this compound is introduced below., Application In Synthesis of 4-Isopropoxyaniline

General procedure: 2-Hydroxynaphthalene-1-carboxylic acid or 1-hydroxynaphthalene-2-carboxylic acid (5.30 mmol) and appropriate alkoxyaniline (5.30 mmol) were suspended in 30 mL of dry chlorobenzene. Phosphorous trichloride (2.65 mmol) was added dropwise, and reacting mixture was heated in the microwave reactor for 15 min at 130 C using infrared flask-surface control of temperature. Solvent was evaporated in vacuum; residue solid was washed with 2M HCl and crystallized from aqueous ethanol. If necessary, column chromatography was used for further purification (mobile phase DCM:MeOH 19:1).

The synthetic route of 7664-66-6 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Gonec, Tomas; Pospisilova, Sarka; Kauerova, Tereza; Kos, Jiri; Dohanosova, Jana; Oravec, Michal; Kollar, Peter; Coffey, Aidan; Liptaj, Tibor; Cizek, Alois; Jampilek, Josef; Molecules; vol. 21; 8; (2016);,
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Synthetic Route of 7664-66-6,Some common heterocyclic compound, 7664-66-6, name is 4-Isopropoxyaniline, molecular formula is C9H13NO, 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 5-carbamoyl-2-fluoro-4-hydroxybenzene-1 -sulfonyl chloride (lnt-2, 1 .4 g) in DCM (15 mL) at 0 C was added pyridine (0.670 mL) followed by 4-isopropyxyaniline (0.696 mL). The reaction mixture was allowed to warm to RT and was stirred for 16 hr. The reaction mixture was poured into water (10 mL) and extracted with DCM (2 x 15 mL). The combined DCM extracts were washed with saturated brine (10 mL), dried over sodium sulfate and concentrated under reduced pressure to afford the crude product (900 mg). The crude product was purified by silica gel column chromatography, eluting with 30-40% EtOAc/petroleum ether to afford the titled compound (700 mg). LCMS m/z 369.09 (M+H)+. NMR (400 MHz, DMSO-c/6) delta ppm 1 .19 (d, J=5.92 Hz, 6 H) 4.36 – 4.56 (m, 1 H) 6.58 – 6.84 (m, 2 H) 6.84 – 7.10 (m, 3 H) 8.06 (br. s., 1 H) 8.31 (d, J=8.1 1 Hz, 1 H) 8.62 (br. s., 1 H) 10.06 (s, 1 H) 14.06 (br. s., 1 H).

The synthetic route of 7664-66-6 has been constantly updated, and we look forward to future research findings.

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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Electric Literature of 7664-66-6, 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 7664-66-6 as follows.

Phenyl chloroformate (15.2 kg, 97.1 mol) was dissolved in toluene (115.7 kg) and cooled to 3 C. 4-isopro- poxyaniline (III) (13.3 kg, 88.0 mol) was mixed with acetonitrile (43.4kg) and slowly added to the phenyl chloroformate solution over 1 hour 40 minutes, followed by slow addition of triethylamine (9.8kg, 96.8 mol) over 46 minutes. The mixture was heated to 17.5C. and stirred for 3 hours 30 minutes until the reaction was deemed complete by HPLC. The product solution was washed with iN HC1, followed by removing acetonitrile though an azeotropic distillation with additional toluene (52.3 kg). The solution was heated to 58 C. before slowly adding heptane (43.7 kg) over 1 hour 2 minutes, after which the slurry was cooled to 23.5 C. over 2 hours 35 minutes and stirred for an additional 2 hours 51 minutes. The material was isolated, washed twice with heptane, and dried at 40 C. for 3 hours 49 minutes. The product was discharged, yielding 19.1 kg of the title compound (lIla) (80% yield, 100% purity HPLC AUC). ?H NMR (300 MHz, CD3OD, oe): 7.38 (m, 4H), 7.19 (m, 3H), 6.86 (d, J=9 Hz 2H), 4.52 (sept, J=6 Hz, 1H), 1.28 (d, J=6 Hz, 611).

According to the analysis of related databases, 7664-66-6, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Millennium Phamaceuticals, Inc.; Armitage, Ian; Ferdous, Abu J.; Bourland, Michael E.; Boyle, Craig S.J.; Cooper, Martin Ian; Langston, Marianne; US2015/133460; (2015); A1;,
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Adding a certain compound to certain chemical reactions, such as: 7664-66-6, name is 4-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 7664-66-6, Recommanded Product: 7664-66-6

The 234 mg (1mmol) 4 – iodo anisole, 465 mg (5mmol) aniline, 38 mg (0.2mmol) CuI, 116.4 mg (0.4mmol) ligand L14, 20mg (0.5mmol) NaOH, 2mL1, 5 – pentanediol, adding 10 ml reaction tube, sealing, 80 C reaction under the condition of 50h. After the stop of the reaction, water, extracted with ethyl acetate, washing, saturated salt water washing, after drying with anhydrous sodium sulfate, filtered, the filtrate is distilled under reduced pressure, purification by silica gel chromatography separation column column, N – 2, 4 – dimethyl shall phenylaniline 244 mg, yield 95%.

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; Sun Yat-sen University; Wan Yiqian; Ding Xiaomei; Huang Manna; Zhu Xinhai; Yi Zhou; CN106883132; (2017); A;,
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Electric Literature of 7664-66-6, 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. 7664-66-6, name is 4-Isopropoxyaniline belongs to ethers-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

EXAMPLE 19 Preparation of 4-(4-chlorobenzyl)-2-dimethyl-amino-5-(4-isopropoxyphenylamino)pyrimidine (I-181) To a mixture of 5-bromo-2-(methylthio)pyrimidine (600 mg, 2.92 mmol), tris(dibenzylideneacetone)(0)-chloroform (303 mg, 0.293 mmol), 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene (169 mg, 0.293 mmol), cesium carbonate (1.91 g, 5.85 mmol) and dioxane (13 mL) was added 4-isopropoxyaniline (531 mg, 3.51 mmol) under nitrogen atmosphere, and the resulting mixture was stirred at 90 C. for 18 hours. The reaction mixture was poured into water (200 mL), and the mixture was extracted with ethyl acetate (100 mL*3). The extract was washed by brine (100 mL), dried over anhydrous magnesium sulfate, and concentrated in vacuo. The resulting residue was purified by silica gel column chromatography (methanol/dichloromethane and ethyl acetate/hexane). The resulting residue was precipitated by dichloromethane and hexane to give 5-(4-isopropoxyphenylamino)-2-(methylthio)pyrimidine (5.24 g, Yield: 65%) as yellow powder. 1H-NMR (DMSO-d6): 1.24 (6H, d, Hz), 2.46 (3H, s), 4.49 (1H, sept, J=6.0 Hz), 6.85 (2H, d, J=9.0 Hz), 7.02 (2H, d, J=9.0 Hz), 8.06 (1H, s), 8.34 (2H, s).

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

Reference:
Patent; SHIONOGI & CO., LTD.; Kai, Hiroyuki; Endoh, Takeshi; Jikihara, Sae; Horiguchi, Tohru; US9212130; (2015); B2;,
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Synthetic Route of 7664-66-6,Some common heterocyclic compound, 7664-66-6, name is 4-Isopropoxyaniline, molecular formula is C9H13NO, 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.

4-Isopropoxy-phenylamine (11.3 g) was added to a solution of 4-hydroxy-1-(2-methoxy-ethyl)-cyclohexanecarboxylic acid ethyl ester (11.5 g) in toluene (361 ml). The mixture was stirred for 10 minutes at RT. Then, dimethylaluminiumchloride (0.9 M in hexane, 99 ml) was added dropwise and the reaction mixture was heated to reflux for 4 h. The mixture was then cooled to 0 C., water (50 ml) was added dropwise then AcOEt (300 ml). The mixture was stirred further 30 minutes, more AcOEt was added, the layers were then separated, the organic layer was dried over MgSO4, filtered and the solvent was evaporated off. The crude product was triturated with diethyl ether/heptane to give the title compound as a mixture of cis/trans isomers as brown solid (14.3 g) which was used directly in the next step. MS (m/e): 304.190 [MH+].

The synthetic route of 7664-66-6 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Hunziker, Daniel; Neidhart, Werner; US2012/238594; (2012); A1;,
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem