Category: alcohols-buliding-blocks

Related Products of 73978-41-3 ,Some common heterocyclic compound, 73978-41-3, molecular formula is C7H9ClN6O, 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.

Initially, the compound 6-bromomethyl-pteridine-2,4-diamine as shown inFormula XIIIH9N N N(XIII)was prepared by first suspending 2,4-diamino-6-(hydroxymethyl)pteridine hydrochloride(2.29 g, 10 mmol) in 100 ml glacial acetic acid, warming to reflux and then allowing tocool to ambient temperature. Hydrobromic acid and 30% AcOH solution (191 ml) wasthen added and the flask stoppered for 4 days. The reaction mixture was then poured into1200 ml dry diethyl ether with stirring. The product was allowed to settle and excesssolvent was removed by decantation. The product was collected, washed with additionalether, and dried for later use.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,73978-41-3, its application will become more common.

Reference:
Patent; SERENEX, INC.; WO2006/14706; (2006); A2;,
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Electric Literature of 112-27-6, 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 112-27-6, name is 2,2′-(Ethane-1,2-diylbis(oxy))diethanol. This compound has unique chemical properties. The synthetic route is as follows.

Phosphorus tribromide (0.47 mL, 5 mmol) was added dropwise to triethylene glycol (5) (3.0 g,20.0 mmol) at -10 C. Then, the reaction was stirred at room temperature for 4 h. After the completionof the reaction, H2O was added, and the pH was adjusted to 7 using 5 M NaOH, extracted with CH2Cl2and dried over anhydrous Na2SO4. Removal of the solvent under vacuum, followed by flash columnchromatography (2% MeOH/CH2Cl2) afforded 11 as yellow oil (1.57 g, 7.36 mmol, 49%)3; 1H NMR(400 MHz, CDCl3) delta 3.83 (t, J = 6.2 Hz, 1H), 3.76 – 3.72 (m, 1H), 3.69 (s, 2H), 3.64 – 3.60 (m, 1H),3.49 (t, J = 6.2 Hz, 1H); 13C NMR (100 MHz, CDCl3) delta 72.6, 71.2, 70.6, 70.4, 61.8, 30.3. The 1H and 13C spectroscopic data are in good agreement with those previously reported.

According to the analysis of related databases, 112-27-6, the application of this compound in the production field has become more and more popular.

Reference:
Article; Thanaussavadate, Bongkotrat; Ngiwsara, Lukana; Lirdprapamongkol, Kriengsak; Svasti, Jisnuson; Chuawong, Pitak; Bioorganic and Medicinal Chemistry Letters; vol. 30; 1; (2020);,
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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. 69605-90-9, name is [1,1′-Biphenyl]-3-ylmethanol, the common compound, a new synthetic route is introduced below. Formula: C13H12O

Step 3. Preparation of (3-phenylphenyl)methyl-2-pyridyl-carbonate and 3-phenylphenyl)methyl-2-oxopyridine 1-carboxylate Under nitrogen atmosphere, to a stirred mixture of 3-phenylphenyl methanol (0.3 g, 1.63 mmol) in dry CH2Cl2 (3 mL), Et3N (0.340 mL, 2.44 mmol) and di-2-pyridyl carbonate (0.387 g, 1.79 mmol) were added. The reaction mixture was left at rt for 15 h, diluted with CH2Cl2 and washed first with a saturated NH4Cl solution (3 mL) and subsequently with a saturated NaHCO3 solution (3*3 mL). The organic fraction was dried over Na2SO4, filtered and concentrated to dryness to afford a dark oil (0.487 g, 98%), as a mixture (ratio 1:3) of 3-phenylphenyl)methyl-2-pyridyl-carbonate and 3-phenylphenyl)methyl-2-oxopyridine 1-carboxylate.

The synthetic route of 69605-90-9 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; The Regents of the University of California; Fondazione Istituto Italiano Di Technologia; Universita Degli Studi Di Parma; Universita Degli Studi Di Urbino ?Carlo Bo?; Piomelli, Daniele; Bandiera, Tiziano; Mor, Marco; Tarzia, Giorgio; Bertozzi, Fabio; Ponzano, Stefano; (102 pag.)US9353075; (2016); B2;,
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Related Products of 445-26-1, 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. 445-26-1, name is 1-(2-Fluorophenyl)ethanol. A new synthetic method of this compound is introduced below.

To a solution of ethyl 2-fluoro-4-iodonicotinate (0.70 g) obtained by a known method (Organic Letters, 7(10), 1943-1946; 2005) and 1-(2-fluorophenyl)ethanol (0.50 g) in THF (7 mL) was added 60% sodium hydride (0.14 g) at 0C, and the mixture was stirred at the same temperature for 1 hr. To the reaction solution was added water at 0C, and the mixture was diluted with ethyl acetate. The organic layer was separated, washed with saturated brine, dried over anhydrous sodium sulfate, and concentrated. The residue was purified by silica gel chromatography (hexane-ethyl acetate) to give the title compound (0.77 g). 1H NMR (300 MHz, CDCl3) delta 1.42 (3H, t, J = 7.1 Hz), 1.61 (3H, d, J = 6.6 Hz), 4.47 (2H, q, J = 7.2 Hz), 6.48 (1H, q, J = 6.5 Hz), 6.94-7.14 (2H, m), 7.17-7.24 (1H, m), 7.25-7.30 (1H, m), 7.41 (1H, td, J = 7.5, 1.6 Hz), 7.73 (1H, d, J = 5.5 Hz).

At the same time, in my other blogs, there are other synthetic methods of this type of compound,445-26-1, 1-(2-Fluorophenyl)ethanol, and friends who are interested can also refer to it.

Reference:
Patent; Takeda Pharmaceutical Company Limited; SUGIMOTO, Takahiro; NAKAMURA, Minoru; SAKAMOTO, Hiroki; SUZUKI, Shinkichi; YAMADA, Masami; KAMATA, Makoto; KOJIMA, Takuto; FUJIMORI, Ikuo; SHIMOKAWA, Kenichiro; EP2921480; (2015); A1;,
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Related Products of 56456-49-6 ,Some common heterocyclic compound, 56456-49-6, molecular formula is C7H6ClFO, 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.

To a solution of 2,3,5-trifluoropyridine (1.5 g, 11 mmol) and 4-chloro-2-fluorobenzyl alcohol (1.81 g, 11.3 mmol) in NMP (20 mL) was added K2CO3 (4.67 g, 33.8 mmol) at 25 C. and the mixture was stirred at 100 C. for 16 h. The mixture was poured into water (30 mL) and then extracted with EtOAc (3*50 mL). The combined organic extracts were washed with brine (3*40 mL), dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified by flash chromatography (0 to 5% EtOAc/PE gradient) to give 2-((4-chloro-2-fluorobenzyl)oxy)-3,6-difluoropyridine (2.45 g, 80%) as a colorless oil. 1H NMR (CDCl3) delta 7.41-7.54 (m, 2H), 7.11-7.20 (m, 2H), 6.47 (ddd, 1H), 5.44 (s, 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. 56456-49-6, 4-Chloro-2-fluorobenzyl alcohol, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; Pfizer Inc.; Aspnes, Gary Erik; Bagley, Scott W.; Curto, John M.; Dowling, Matthew S.; Edmonds, David; Flanagan, Mark E.; Futatsugi, Kentaro; Griffith, David A.; Huard, Kim; Ingle, Gajendra; Jiao, Wenhua; Limberakis, Chris; Mathiowetz, Alan M.; Piotrowski, David W.; Ruggeri, Roger B.; (73 pag.)US2018/170908; (2018); A1;,
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Reference of 7218-43-1, Adding some certain compound to certain chemical reactions, such as: 7218-43-1, name is 2-[2-(2-Propynyloxy)ethoxy]ethanol,molecular formula is C7H12O3, 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 7218-43-1.

Weigh 1g of compound 44 in 50mL of dichloromethane, add 1.4g of triethylamine and 2.1g of p-nitrophenyl chloroformate, stir overnight at room temperature, and concentrate by column chromatography to obtain 603mg of compound 45, yield 28.1% .

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. 7218-43-1, 2-[2-(2-Propynyloxy)ethoxy]ethanol, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; Shenzhen Tagete Bio-pharmaceutical Technology Co., Ltd.; Xie Yongmei; Zhao Yu; Luo Bo; (38 pag.)CN110845559; (2020); A;,
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With the rapid development and complex challenges of chemical substances, the synthesis of new drugs is usually one of the most effective ways to increase yield.100-37-8, name is 2-(Diethylamino)ethanol, molecular formula is C6H15NO, molecular weight is 117.1894, as common compound, the synthetic route is as follows.HPLC of Formula: C6H15NO

A mixture of 3-[6-(7-chloro-4-oxo-4H-1,3-benzothiazin-2-yl)-4-(methylsulfonyl)pyridin-2-yl]prop anoic acid (0.21 g, 0.5 mmol), N,N-diethylethanolamine (0.12 g, 1.0 mmol), HOBt H2O (92 mg, 0.6 mmol), WSC (116 mg, 0.6 mmol), 4-dimethylaminopyridine (74 mg, 0.6 mmol) and DMF (3 ml) was stirred at room temperature for 18 hours. Water (20 ml) was added to the reaction mixture and the crystals formed were taken by filtration. The crystals were recrystallized from ethanol to give the title compound (0.13 g, 50%). Melting point: 150.5-151.5C 1H-NMR (CDCl3) delta: 1.02 (6H, t, J=7.2 Hz), 2.57 (4H, q, J=7.2 Hz), 2.71 (2H, t, J=6.3 Hz), 3.04 (2H, t, J=7.2 Hz), 3.16 (3H, s), 3.39 (2H, t, J=7.2 Hz), 4.20 (2H, t, J=6.3 Hz), 7.60-7.67 (2H, m), 7.98 (1H, s), 8.50 (1H, d, J=8.4 Hz), 8.80 (1H, s).

At the same time, in my other blogs, there are other synthetic methods of this type of compound,100-37-8, 2-(Diethylamino)ethanol, and friends who are interested can also refer to it.

Reference:
Patent; Takeda Pharmaceutical Company Limited; EP1897880; (2008); A1;,
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Reference of 702-82-9, Adding some certain compound to certain chemical reactions, such as: 702-82-9, name is 3-Aminoadamantan-1-ol,molecular formula is C10H17NO, 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 702-82-9.

EXAMPLESExample 1-1 (General procedure (A))4-(2,4-Dichloro-phenoxy)-N-((1 R,3S,5R,7S)-3-hvdroxy-adamantan-1-yl)-butyramideTo a stirred solution of 4-(2,4-dichloro-phenoxy)-butyric acid (0.8 g, 3.21 mmol) in dry THF (25 mL) was added HOBt (0.48 mg, 3.533 mmol) and EDAC (0.68 g, 3.533 mmol). After stirring for 10 min. at room temperature, DIPEA (0.62 mL) and 3-amino-adamantan-1- ol (0.59 g, 3.533 mmol) were added and the resulting mixture was stirred for 16 hrs. at room temperature. The volatiles were removed in vacuo and to the residue was added water (25 mL) followed by extraction with EtOAc (3×35 mL). The combined organic phases were washed with brine, dried (Na2SO4), filtered and the solvent evaporated in vacuo. The oily residue was crystallised from diethyl ether (5 mL) affording after drying at 50 0C in vacuo 800 mg (62 %) of the title compound as a solid. 1H NMR (400 MHz, DMSO-c/6) delta 1.35 – 1.58 (m, 6H), 1.70 – 1.85 (m, 6H), 1.91 (q, 2H) 2.09 (br.s., 2H), 2.21 (t, 2H), 4.04 (t, 2H), 4.48 (br.s., 1 H), 7.15 (d, 1 H), 7.36 (dd, 1 H), 7.40 (br.s., 1 H), 7.57 (d, 1 H).

According to the analysis of related databases, 702-82-9, the application of this compound in the production field has become more and more popular.

Reference:
Patent; TRANSTECH PHARMA, INC.; NOVO NORDISK A/S; WO2008/134221; (2008); A1;,
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Application of 932-01-4, With the rapid development and complex challenges of chemical substances, the synthesis of new drugs is usually one of the most effective ways to increase yield.932-01-4, name is 4,4-Dimethylcyclohexanol, molecular formula is C8H16O, molecular weight is 128.21, as common compound, the synthetic route is as follows.

Method B: To a solution of 7-nitrophthalazin-l(2H)-one (Intermediate- 10, step-1 , 355 mg, 1.858 mmol) and 4,4-dimethylcyclohexanol (356 mg, 2.78 mmol) in THF (6 mL) were added PPh3 (1.22 g, 4.64 mmol) and diisopropyl azodicarboxylate (1.12 g, 5.57 mmol) and the reaction mixture was heated at reflux for 4 h. Then the reaction mixture was quenched with water and was extracted with EtOAc. The organic layer was washed with brine, separated, dried, filtered and concentrated. The residue was purified by column chromatography to afford 300 mg of the title product.

The chemical industry reduces the impact on the environment during synthesis 932-01-4, I believe this compound will play a more active role in future production and life.

Reference:
Patent; GLENMARK PHARMACEUTICALS S.A.; GHARAT, Laxmikant Atmaram; BANERJEE, Abhisek; KHAIRATKAR-JOSHI, Neelima; KATTIGE, Vidya Ganapati; WO2013/72825; (2013); A1;,
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Electric Literature of 127-66-2 ,Some common heterocyclic compound, 127-66-2, molecular formula is C10H10O, 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.

General procedure: The reactions were performed in a 50 ml autoclave with a Teflon vessel inside equipped with magnetic stirring under 3.0 MPa CO2. After introducing DBU (60.8 mg, 0.4 mmol), propylene glycol (76.1 mg, 1 mmol), 2-methyl-3-butyn-2-ol (126.2 mg, 1.5 mmol), DMF (2 ml), the autoclave was sealed and filled with CO2 to keep thepressure of CO2 under 3.0 MPa. Then, the reaction mixture was stirred at 120 C for 10 h. When the reaction completed, the autoclave was cooled to ambient temperature and residual CO2 was carefully released. Subsequently, the mixture was flushed with DMF and analyzed by GC using biphenyl as an internal standard.

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. 127-66-2, 2-Phenylbut-3-yn-2-ol, other downstream synthetic routes, hurry up and to see.

Reference:
Article; Han, Li-Hua; Li, Jing-Yuan; Song, Qing-Wen; Zhang, Kan; Zhang, Qian-Xia; Sun, Xiao-Fang; Liu, Ping; Chinese Chemical Letters; (2019);,
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