Category: alcohols-buliding-blocks

Adding a certain compound to certain chemical reactions, such as: 61367-62-2, 4-Bromo-3,5-dimethoxybenzyl alcohol, 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, 61367-62-2, blongs to alcohols-buliding-blocks compound. Product Details of 61367-62-2

(4-Bromo-3,5-dimethoxyphenyl)methanol (2.11 g) was dissolved in tetrahydrofuran (8.3 mL), and subsequently 3,4-dihydro-2H-pyran (1.56 mL) and p-toluenesulfonic acid monohydrate (0.16 g) were added thereto. The mixture was stirred for 13.3 hours at room temperature under a nitrogen atmosphere. Tetrahydrofuran (5 mL) was added thereto, and then a 2.77 M n-butyllithium-hexane solution (3.3 mL) was added dropwise thereto at an internal temperature of -76.7 to -61.3°C. Three minutes after the dropwise addition, 5 mL of tetrahydrofuran was further added, and the mixture was stirred for 53 minutes in a dry ice-acetone bath. Triisopropyl borate (2.4 mL) was added dropwise thereto at an internal temperature of -76.4 to -68.7°C, and the mixture was stirred for 30 minutes at the same temperature, and then stirred for one hour at room temperature. 10 mL of 1 N hydrochloric acid was added thereto, and the mixture was stirred for 2.5 hours at room temperature. 5 N hydrochloric acid (6 mL) was added thereto, and the mixture was stirred for 2. 7 hours at the same temperature. The reaction system was left to stand still, and the lower layer was obtained by partition. A 2 N aqueous solution of sodium hydroxide was added to the lower layer to adjust to pH 7 to 8. The upper layer was extracted two times with a 2 N aqueous solution of sodium hydroxide (5 mL each), and the extracts were combined with this liquid. The obtained alkaline extracted layer was washed with t-butyl methyl ether (20 mL), and then was adjusted to pH = 2 to 3 with 5 N hydrochloric acid. The extracted layer was subjected to extraction four times with ethyl acetate (20 mL each). The combined ethyl acetate extracted layer was washed with 10 mL of saturated brine, and was dried over anhydrous magnesium sulfate. The residue was dried under reduced pressure at 45°C, and was dried in a vacuum at room temperature, to obtain 909 mg (yield 50.2percent) of the target product. 1H-NMR (CDCl3): delta: 3.92 (s, 6H), 4.73 (s, 2H), 6. 61 (dd, J= 6.8, 1.2 Hz, 1H), 6.65 (s, 2H), 7.19 (s, 2H).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,61367-62-2, its application will become more common.

Reference:
Patent; Eisai R&D Management Co., Ltd.; EP2202233; (2010); 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. 27646-80-6, name is 2-Methyl-2-(methylamino)propan-1-ol. A new synthetic method of this compound is introduced below., SDS of cas: 27646-80-6

To a mixture of 2,2-difluoroethyl trifluoromethanesulfonate ( 1.0 g, 4.67 mmol), 2- methyl-2-(methylamino)propan-l-o3 (0.48 g, 4.67 mmol) in THF (10 mL) was added DIPEA (0.65 g, 4.8 mmol). The resulted mixture was stirred at 70 °C for 18 h, then concentrated to dryness. The residue was stirred in EtOAc (40 mL) for 5 min, then filtered. The filtration was concentrated in vacuo. The crude residue was purified via silica chromatography and a gradient of 10percent- 100percent EtOAc in hexanes to afford 2- ((2,2~difluoroethyl)(methyi)aniino)-2-methyipropan-l-ol as a colorless oil (0.66 g).

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, 27646-80-6, 2-Methyl-2-(methylamino)propan-1-ol.

Reference:
Patent; PRINCIPIA BIOPHARMA INC.; LOU, Yan; OWENS, Timothy, Duncan; BRAMELD, Kenneth, Albert; GOLDSTEIN, David, Michael; (230 pag.)WO2018/136401; (2018); A1;,
Alcohol – Wikipedia,
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Reference of 767-90-8, The major producers of chemicals have been the Europe, Japan and China. Due to the growing call for a cleaner, greener environment, people will have to find innovative ways to maintain their relevance. Here is a compound 767-90-8, name is (2-Ethylphenyl)methanol. This compound has unique chemical properties. The synthetic route is as follows.

To a solution of (2-ethylphenyl)metha- nol (13-1, 1.00 g, 7.3 mmol) in DMF (25 mE) at room temperature under nitrogen, N135 (2.6 g, 14.6 mmol) and triphenylphosphine (4.03 g, 15.3 mmol) were added sequentially. The mixture was heated to 50 C. overnight, cooled to room temperature and diluted with water and dichloromethane. The aqueous layer was extracted twice more with dichioromethane and the organic layers were combined, washed with brine, dried, filtered and concentrated. The residue was purified by silica gel column chromatography, eluting with 10% ethyl acetate in hexanes to give 1-(bromomethyl)-2-ethylbenzene (13-2, 1.1 g) as an oil.

According to the analysis of related databases, 767-90-8, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Aviara Pharmaceuticals, Inc.; Biediger, Ronald J.; Benish, Michele A.; Market, Robert V.; Savage, Michael M.; Young, Brandon M.; (49 pag.)US2018/312498; (2018); A1;,
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Adding a certain compound to certain chemical reactions, such as: 1072-52-2, 2-(Aziridin-1-yl)ethanol, 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, Computed Properties of C4H9NO, blongs to alcohols-buliding-blocks compound. Computed Properties of C4H9NO

2-Methyl-3,4-dihydro-2H-spiro[isoquinoline-1 ,4?-piperidine] (compound obtained in example 65 step a, 268 mg, 1.23 mmol) and 2-(aziridin-1-yl)ethanol (43 jtL, 0.49mmol) were dissolved in dichioromethane in a process vial. The reaction was stirredfor few minutes and then the solvent was removed with a stream of nitrogen.Amberlyst (6 mg) was added, the vial was sealed with a septum and the reaction mixture was subjected to microwave irradiation for 3 h at 1000 C. After cooling back to r.t., the reaction was diluted with dichloromethane, and NaHCO3 was added. The phases were separated and the aqueous phase additionally extracted with DCM. The aqueous phase was then basified with NaOH solution and again extracted twice withDCM. The combined organic fractions were dried over sodium sulphate, filtered and the solvent removed to give a crude product which was purified under preparative HPLC (Column X-Bridge C18, H20+ 0.05% formic acid : ACN + 0.05% formic acid from (98:2 to 5:95), flow 20 mI/mm, rt).HPLC-MS (Method H): Ret, 1.23 mm; ESl-MS m/z, 304.2 (M+i).

The synthetic route of 1072-52-2 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; LABORATORIOS DEL DR. ESTEVE, S.A.; ALMANSA-ROSALES, Carmen; GARCIA-LOPEZ, Monica; CAAMANO-MOURE, Ana-Maria; (282 pag.)WO2016/78770; (2016); A1;,
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Synthetic Route of 39590-81-3, 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. 39590-81-3, name is 1,1-Bis(Hydroxymethyl)cyclopropane. A new synthetic method of this compound is introduced below.

Method A, Step 1To a solution of i-hydroxymethylcyclopropylmethanol AA1 (10 g, 98 mmol) in DMF (300 ml_) was added tert-butylchlorodiphenylsilane (26.3 ml_, 100 mmol) followed by diisopropylethylarnine (170 mL) and the reaction was stirred at RT overnight. The final mixture was quenched with water and extracted with EtOAc. The organic layer was washed with 3N HCI, sat NaHCO3, brine, dried over Na2SO4 and concentrated. The residue was purified by chromatography over silica gel (eluted with DCM/MeOH 100:0 to 80:20) to give 18.5 g (55%) of product AA2.

At the same time, in my other blogs, there are other synthetic methods of this type of compound,39590-81-3, 1,1-Bis(Hydroxymethyl)cyclopropane, and friends who are interested can also refer to it.

Reference:
Patent; SCHERING CORPORATION; WO2009/61699; (2009); A1;,
Alcohol – Wikipedia,
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Adding a certain compound to certain chemical reactions, such as: 68327-04-8, (1S,2S)-2-Aminocyclopentanol hydrochloride, 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, Formula: C5H12ClNO, blongs to alcohols-buliding-blocks compound. Formula: C5H12ClNO

A mixture of 5,6-dimethyl-4-(4-(1-methyl-1H-pyrazol-3-yl)benzyl)picolinic acid (30.0 mg), (1S,2S)-2-aminocyclopentanol hydrochloride (19.3 mg), WSC (26.8 mg), HOBt (18.9 mg) and triethylamine (28.3 mg) in DMF (1 mL) was stirred at room temperature overnight. To the reaction mixture was added saturated aqueous sodium hydrogen carbonate solution and extracted twice with ethyl acetate. The obtained organic layer was washed with saturated brine, dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate/methanol), and solidified with ethyl acetate-hexane to give the title compound (30.0 mg). 1H NMR (300 MHz, CDCl3) delta1.60-1.96 (4H, m), 2.03-2.18 (1H, m), 2.22 (3H, s), 2.24-2.34 (1H, m), 2.53 (3H, s), 3.94 (3H, s), 3.95-4.03 (1H, m), 4.05 (2H, s), 4.08-4.18 (1H, m), 4.71 (1H, brs), 6.49 (1H, d, J = 1.7 Hz), 7.11 (2H, d, J = 8.0 Hz), 7.36 (1H, d, J = 1.9 Hz), 7.69 (2H, d, J = 8.0 Hz), 7.88 (1H, s), 8.20 (1H, brs).

The synthetic route of 68327-04-8 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Takeda Pharmaceutical Company Limited; OGINO, Masaki; KIMURA, Eiji; SUZUKI, Shinkichi; ASHIZAWA, Tomoko; IMAEDA, Toshihiro; FUJIMORI, Ikuo; ARAI, Ryosuke; (82 pag.)EP3156397; (2017); A1;,
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Adding a certain compound to certain chemical reactions, such as: 7589-27-7, 2-(4-Fluorophenyl)ethanol, 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, 7589-27-7, blongs to alcohols-buliding-blocks compound. Computed Properties of C8H9FO

To a 40 mL vial equipped with a stir bar was added 4-bromo-2,6-difluorophenol (1.04 g, 5.00 mmol), 2-(4-fluorophenyl)ethanol (700 mg, 5.00 mmol), triphenylphosphine (1.57 g, 6.00 mmol) and THF (25 mL). To the stirred solution was added DIAD (1.17 mL, 6.00 mmol). The solution warmed to a mild reflux, then cooled within 5 minutes. The solution was stirred at r.t. for 18h. The reaction solution was concentrated in vacuo. The resulting residue was dissolved in a mm. of acetone, then was concentrated onto Celite in vacuo. The resulting powder was subjected to Si02 purifciation (80g column, hexanes : EtOAc 100: 0- 80:20) to afford 5-bromo- 1,3 -difluoro-2-(4-fluorophenethoxy)benzene (1.552 g, 94percent). ?HNMR(500MF-Tz, CDC13) 7.26 – 7.21 (m,2H), 7.11 – 7.04 (m, 2H), 7.03 – 6.97 (m, 2H), 4.30 (t, J=6.9 Hz, 2H), 3.06 (t, J=6.9 Hz,2H).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,7589-27-7, its application will become more common.

Reference:
Patent; VIIV HEALTHCARE UK (NO.5) LIMITED; BELEMA, Makonen; BOWSHER, Michael S.; DESKUS, Jeffrey A; EASTMAN, Kyle J.; GILLIS, Eric P; FRENNESSON, David B; IWUAGWU, Christiana; KADOW, John F.; NAIDU, B. Narasimhulu; PARCELLA, Kyle E.; PEESE, Kevin M; SAULNIER, Mark G; SIVAPRAKASAM, Prasanna; (463 pag.)WO2018/127800; (2018); A1;,
Alcohol – Wikipedia,
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Application of 37729-18-3, 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. 37729-18-3, name is 2-([1,1′-Biphenyl]-4-yl)ethanol. A new synthetic method of this compound is introduced below.

Compound 30:Acrylic acid (13.5 mg, 0.05 mmol) was added sequentially to a 25 mL two-necked flask,2-biphenylethyl alcohol (49.5 mg, 0.25 mmol),N, O-bis (diethylsilyl) trifluoroacetamide (213.6 mg, 0.75 mmol)Potassium peroxy monosulfonate (307.0 mg, 0.50 mmol)The gas was replaced with dry N2 for 3 times,Finally, dry tetrahydrothiopyran (0.5 mL) was added under N2.Stirred at room temperature and heated to 50 C to carry out the reaction,Until the thin layer chromatography monitoring of raw materials is completed.At the end of the reaction, 15.0 mL of NaCl solution was added at room temperature,Extracted with ether 15.0 mL three times,The combined organic phase was distilled under reduced pressure and the product was purified by column chromatography in 65% yield.

At the same time, in my other blogs, there are other synthetic methods of this type of compound,37729-18-3, 2-([1,1′-Biphenyl]-4-yl)ethanol, and friends who are interested can also refer to it.

Reference:
Patent; Nanjing Normal University; Han Wei; Zhao Hongyuan; (19 pag.)CN107056732; (2017); A;,
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Related Products of 14002-80-3, 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. 14002-80-3, name is Methyl 3-hydroxy-2,2-dimethylpropanoate, molecular formula is C6H12O3, The 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.

Step (i): Methyl 3-(2-methoxyethoxy)-2,2-dimethylpropanoate (39) Sodium hydride (60 % wt in oil) (3.14 g, 78 mmol) was added to a stirred solution of methyl 3- hydroxy-2,2-dimethylpropanoate (5 mL, 39.2 mmol) in DMF (5.6 mL) at 0C, after 5 min 1- bromo-2-methoxyethane (7.4 mL, 78 mmol) was added dropwise, and the reaction mixture was allowed to stir for 3h. The reaction was quenched with sat. NH4CI (aq.) (30 mL) and the aqueous layer was extracted with DCM (2 x 50 mL), the combined organic layers were dried (MgS04), filtered and concentrated in vacuo. The crude oil was dissolved in EtOAc (125 mL) and washed with water (3 x 40 mL), dried (MgS04), filtered and concentrated in vacuo. The material was purified by vacuum distillation (68-69C, 4.4 mbar) to afford methyl 3-(2- methoxyethoxy)-2,2-dimethylpropanoate (39) (1.83 g, 25 %) as a colourless oil: 1 H NMR (400 MHz, CDCIs) delta: 3.68 (s, 3H), 3.60-3.58 (m, 2H), 3.52-3.50 (m, 2H), 3.49 (s, 2H), 3.37 (s, 3H), 1.19 (s, 6H).

According to the analysis of related databases, 14002-80-3, the application of this compound in the production field has become more and more popular.

Reference:
Patent; UNIVERSITY OF LEICESTER; ANDREW, Peter William; LONNEN, Rana; DAMASO, Mafalda Pires; FRICKEL, Fritz-Frieder; HIRST, Simon Christopher; DAVIES, Mark William; HAMZA, Daniel; WO2013/83975; (2013); A2;,
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Adding a certain compound to certain chemical reactions, such as: 100442-33-9, 1-(3,3-Diphenyl-N-methylpropylamino)-2-methyl-2-propanol, 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, Formula: C20H27NO, blongs to alcohols-buliding-blocks compound. Formula: C20H27NO

Example 2: Preparation of crude l,4-dihvdro-2,6-dimethyl-4-(3- nitrophenyl)-3 ,5 -pyridinedicarboxylic acid [2-|Y3,3- diphenylpropyl)methylamino]-l,l-dimethylethyl1 methyl ester hydrochloride (crude lercanidipine hydrochloride)2.31 mL of triethylamine and 3.1 g of diethylchlorothiophosphate were added to 5.0 g of 2,6-dimethyl-5-methoxycarbonyl-4-(3-nitrophenyl)-l,4- dihydropyridine-3-carboxylic acid (2) in 50 mL of toluene. The mixture was stirred at room temperature for one hour. After formation of a substituted phosphonoester derivative (5) as an intermediate was confirmed by thin layer chromatography (TLC), 4.49 g of 2, N-dimethyl-N-(3,3-diphenylpropyl)-l-amino- 2-propanol (3) was added thereto. The resulting mixture was refluxed for 4 hours. The reaction mixture was treated with activated carbon and was then concentrated under reduced pressure to remove toluene therefrom. The residue was dissolved in 30 mL of ethyl acetate. The organic phase was washed sequentially with 11 mL of a 10% NaOH aqueous solution, 11 mL of distilled water, 13.1 mL of 6N HCl and 11 mL of distilled water. An organic layer was separated, dried with activated carbon and anhydrous sodium sulfate for 30 min and concentrated under reduced pressure. The residue was dissolved in 15.7 mL of tetrahydrofuran and was then seeded with 50 mL of lercanidipine hydrochloride. The lercanidipine hydrochloride (dispersion) was stirred at 20 to 25 C for 24 hours, filtered and dried under vacuum to obtain 8.1 g of crude lercanidipine hydrochloride (theoretical yield: 83.1%).IH NMR (DMSO-d6, 400MHz)(ppm): 10. 8 ~9.4 (bb, IH), 9.5 (bs, IH), 8.30- 8.05 (m, 2H), 7.85 ~ 7.60 (m, 2H), 7.55 ~ 7.20 (m, 10H), 5.05 (s, IH), 4.15 -3.35 (m, 6H), 3.20 -2.15 (m, 13H), 2.6 (s, 3H), 1.50 (s, 6H).

The synthetic route of 100442-33-9 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; DONGWOO SYNTECH CO., LTD; WO2008/82041; (2008); A1;,
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts