Month: July 2021

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. 3637-61-4, name is Cyclopentanemethanol, molecular formula is C6H12O, 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. category: alcohols-buliding-blocks

1 ,3-Dibromo-5-cyclopentylmethoxy-benzene. [00479] 3,5-Dibromophenol (5.0 g; 19.8 mmol), cyclopentane-methanol (2.0 g; 19.9 mmol) and tributylphosphine (8.8 mL; 35.7 mmol) were dissolved in dry THF (250 mL) in a dried reaction flask under an atmosphere of nitrogen. l,l’-(Azodicarbonyl)dipiperidine (9.01 g; 35.7 mmol) dissolved in dry THF (150 mL) was added to the reaction mixture, which was EPO stirred at room temperature for 16 hours. The reaction mixture was filtered, evaporated to dryness and purified by flash chromatography (heptane – > ethyl acetate: heptane 2:3). Yield: 5.68 g; 86 %.

With the rapid development of chemical substances, we look forward to future research findings about 3637-61-4.

Reference:
Patent; NOVO NORDISK A/S; WO2007/3581; (2007); A1;,
Alcohol – Wikipedia,
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Reference of 7541-49-3 ,Some common heterocyclic compound, 7541-49-3, molecular formula is C20H40O, 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.

Platinum oxide (PtO2, 1.15 g, 6.61 mmol) is added to a solution of phytol (30.00 g, 101.20 mmol) in THF (450 mL) under argon and the medium is placed under 1 bar of dihydrogen, then stirred for 4 hours at room temperature. After filtration through celite rinsed with THF, a black oil of molecule A27 is obtained after concentration under reduced pressure. Yield: 29.00 g (96%)1H-NMR (CDCl3, ppm): 0.84 (6H); 0.86 (6H); 0.89 (3H); 1.00-1.46 (22H); 1.46-1.68 (3H); 3.61-3.73 (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. 7541-49-3, 3,7,11,15-Tetramethylhexadec-2-en-1-ol, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; ADOCIA; GEISSLER, Alexandre; (119 pag.)US2019/275108; (2019); A1;,
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

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. 4845-50-5, name is 1,4-Dioxane-2,3-diol, the common compound, a new synthetic route is introduced below. HPLC of Formula: C4H8O4

To a solution of the corresponding compound 39G (0.9 mmol) in ethanol/water (30 mL/4 mL) was added l,4-dioxane-2,3-diol (130 mg, 1.08 mmol) and the resulting suspension was stirred at 30C overnight. The solvent was removed in vacuo and the residue was partitioned between water and EtOAc. The organic layer was separated and washed with water and brine, dried over Na2S04 and concentrated, and then purified by a standard method to give title product 39H.

The synthetic route of 4845-50-5 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; AGIOS PHARMACEUTICALS, INC.; CIANCHETTA, Giovanni; POPOVICI-MULLER, Janeta; ZAHLER, Robert; CAO, Sheldon; WANG, Xiaolei; YE, Zhixiong; WO2014/139325; (2014); A1;,
Alcohol – Wikipedia,
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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. 575-03-1, name is 7-Hydroxy-4-(trifluoromethyl)coumarin. This compound has unique chemical properties. The synthetic route is as follows. Product Details of 575-03-1

General procedure: The appropriate bromoketone (6a-o) (1.7 mmol) and triethylamine (1.6 mmol) were added to as olution of either7-hydroxy-4-methyl-2H-chromen-2-one 4 (1.4 mmol)or 7-hydroxy-4-(trifluoromethyl)-2H-chromen-2-one 5 (1.4 mmol) in THF (20 mL). The mixture was stirred at room temperature for 24h, filtered and the solvent was evaporated under reduced pressure.The solid residue was purified by column chromatography eluting with DCM/MeOH 9:1 to afford (7a-n) and (8a-o).

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, 575-03-1, 7-Hydroxy-4-(trifluoromethyl)coumarin.

Reference:
Article; Kandil, Sahar; Westwell, Andrew D.; Mcguigan, Christopher; Bioorganic and Medicinal Chemistry Letters; vol. 26; 8; (2016); p. 2000 – 2004;,
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Synthetic Route of 15258-73-8, 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. 15258-73-8, name is (2,6-Dichlorophenyl)methanol, molecular formula is C7H6Cl2O, 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.

To solution of 6-chloro-1,2,3,4-tetrahydro-2,7-naphthyridine hydrochloride (500 mg;2.44 mmol; 1 eq) in 30 mL toluene were added (2,6-dichlorophenyl)methanol (518 mg; 2.93 mmol; 1.2 eq), 1,4,7,1O,13,16-hexaoxacyclooctadecane (18-Crown-6; 64.4 mg; 0.244 mmol; 1.1 eq) and KOH (547 mg; 9.75 mmol; 4 eq). The mixture was stirred for 3h at RT. The mixture was evaporated and the residue was purified byflash chromatography (silica gel, DCM:MeOH 9:1) giving the product with a yield of 710 mg (1.378 mmol; 47%).

While traditionally a conservative industry, chemical producers will need to modernize their PR strategies to stay relevant.we look forward to future research findings about 15258-73-8, (2,6-Dichlorophenyl)methanol.

Reference:
Patent; ABBVIE INC.; ABBVIE DEUTSCHLAND GMBH & CO. KG; LANGE, Udo; OCHSE, Michael; VAN DER KAM, Elizabeth; VAN BERGEIJK, Jeroen; TURNER, Sean; OELLIEN, Frank; WALLESER, Patrick; AMBERG, Wilhelm; HORNBERGER, Wilfried; GENESTE, Herve; MEZLER, Mario; HUTCHINS, Charles; (301 pag.)WO2017/36978; (2017); A1;,
Alcohol – Wikipedia,
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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. 1205037-95-1, name is trans-3-Aminocyclobutanol hydrochloride. This compound has unique chemical properties. The synthetic route is as follows. Quality Control of trans-3-Aminocyclobutanol hydrochloride

In an ice bath, 44.5 mg (1 .12 mmol) sodium hydride (60% dispersion in mineral oil) were dispensed in 5 mL of anhydrous THF. 91 .6 mg (0.742 mmol) trans-3- aminocyclobutan-1 -ol (hydrochloride salt) were slowly added. Stirring at 0 C was continued for 15 min. 100 mg (0.371 mmol) of intermediate 2 were added, the ice bath was removed and the resulting mixture was stirred for 5 days at 40 C. The reaction mixture was carefully poured into water. The aqueous layer was extracted with ethyl acetate. The combined organic layers were dried over magnesium sulfate, and concentrated. The crude product was purified by HPLC to give 32 mg of the title compound as a solid material. 1H-NMR (300 MHz ,DMSO-d6), delta [ppm]= 2.49-2.57 (2H), 3.72 (2H), 5.53 (1 H), 7.01 (1 H), 7.31 (2H), 7.58-7.67 (2H), 7.71 -7.77 (1 H), 8.1 1 -8.19 (2H). LC-MS (Method 3): Rt = 0.73 min; MS (ESIpos) m/z = 321 [M+H]+.

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, 1205037-95-1, trans-3-Aminocyclobutanol hydrochloride.

Reference:
Patent; Bayer Intellectual Property GmbH; EIS, Knut; PUeHLER, Florian; ZORN, Ludwig; SCHOLZ, Arne; LIENAU, Philip; GNOTH, Mark, Jean; BOeMER, Ulf; GUeNTHER, Judith; HITCHCOCK, Marion; WO2013/34570; (2013); A1;,
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Electric Literature of 7073-69-0, 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. 7073-69-0, name is 2-(2-Bromophenyl)propan-2-ol, molecular formula is C9H11BrO, 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.

To the crude alcohol was added conc. HCl (3 drops) and 3,4-dihydro-2H-pyran (S3) (4.07 g, 48.5 mmol, 1.20 equiv) and stirred neat at room temperature for 24 h. The mixture was diluted with Et20 (50 mL), and washed with a sat. aq. NaHCO3 (25 mL). The aqueous layer was extracted with Et20 (2 x 50 mL) and the combined organic layers were washed with brine, dried (MgSO4), filtered and concentrated under reduced pressure to afford 2-((2-(2-bromophenyl)propan-2-yl)oxy)tetrahydro-2H-pyran (S4) (8.30 g, ca. 38.8 mmol, 1.00 equiv) which was used without further purification.

While traditionally a conservative industry, chemical producers will need to modernize their PR strategies to stay relevant.we look forward to future research findings about 7073-69-0, 2-(2-Bromophenyl)propan-2-ol.

Reference:
Patent; THE TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA; HOYE, Adam, T.; KIM, Won-suk; MARTINEZ-SOLORIO, Dionicio; SMITH, Amos, B.; SANCHEZ, Luis; TONG, Rongbiao; NGUYEN, Minh, Huu; WO2013/185021; (2013); A2;,
Alcohol – Wikipedia,
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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.6240-11-5, name is 1-Adamantaneethanol, molecular formula is C12H20O, molecular weight is 180.2866, as common compound, the synthetic route is as follows.Quality Control of 1-Adamantaneethanol

A solution of 1-adamantylethanol (3 g, 16.64 mmol) in methylen chloride (50 mL) and triethylamine (2.8 mL, 19.95 mmol) was stirred for 10 minutes. Then methanesulfonyl chloride (1.55 mL, 20.03 mmol) was added and the resulting reaction mixture was stirred at room temperature for 72 hours. The crude was partitioned between methylen chloride and a solution of sodium hydrogen carbonate (4%). The organic layer was washed with water and brine and the solvent was removed under reduced pressure to give the title compound as a yellow oil (4.1 g, 96%), which was used in the next step without further purification.

At the same time, in my other blogs, there are other synthetic methods of this type of compound,6240-11-5, 1-Adamantaneethanol, and friends who are interested can also refer to it.

Reference:
Patent; LABORATORIOS ALMIRALL, S.A.; WO2009/68177; (2009); A1;,
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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.124-68-5, name is 2-Amino-2-methyl-1-propanol, molecular formula is C4H11NO, molecular weight is 89.1362, as common compound, the synthetic route is as follows.HPLC of Formula: C4H11NO

General procedure: Amine (1 mmol) was added to the mixture of (Boc)2O (1 mmol) and DSIMHS (6.5 mg, ~ 0.02 mmol) with constant stirring at room temperature under solvent-free conditions. After completion of the reaction (monitored by TLC), ethyl acetate (3 × 5 mL) was added to the reaction mixture and the catalyst was decanted and washed with ethyl acetate (2 × 5 mL) and dried. The product was purified by column chromatography, using ethyl acetate-petroleum ether (2:8) eluent.

At the same time, in my other blogs, there are other synthetic methods of this type of compound,124-68-5, 2-Amino-2-methyl-1-propanol, and friends who are interested can also refer to it.

Reference:
Article; Shirini, Farhad; Khaligh, Nader Ghaffari; Journal of Molecular Liquids; vol. 177; (2013); p. 386 – 393;,
Alcohol – Wikipedia,
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Related Products of 52273-77-5, 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.52273-77-5, name is 2-(3-Aminophenyl)ethanol, molecular formula is C8H11NO, molecular weight is 137.179, as common compound, the synthetic route is as follows.

Step A: 2-{3-[(5-Chloro-4-{[2-(3-methoxyphenyl)ethyl]amino}pyrimidin-2-yl)amino]phenyl}ethanol To a solution of 2,5-dichloro-N-[2-(3-methoxyphenyl)ethyl]pyrimidin-4-amine (0.50 g, 1.7 mmol) (prepared according to Example 8, step A) and 2-(3-aminophenyl)ethanol (0.31 g, 2.3 mmol) (prepared according to Example 22, Step B) in 1,4-dioxane (14.3 mL) was added p-toluenesulfonic acid monohydrate (0.12 g, 0.61 mmol). The mixture was heated at 100 C. for 16 h and the reaction was complete. To the mixture was added NaHCO3 (saturated aqueous solution). The organic solvent was removed under vacuum and water/EtOAc was added. After layer separation, the aqueous layer was extracted with EtOAc twice. The combined organic layers were dried over Na2SO4, filtered, and concentrated (then triturated with cold EtOAc) to give the desired product as a light brown powder (0.64 g, 96%). LCMS for C21H24ClN4O2 (M+H)+: m/z=399.1.

Statistics shows that 52273-77-5 is playing an increasingly important role. we look forward to future research findings about 2-(3-Aminophenyl)ethanol.

Reference:
Patent; INCYTE CORPORATION; US2010/190804; (2010); A1;,
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts