Tag: M.W=200-300

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. 2043-47-2, name is 1H,1H,2H,2H-Nonafluoro-1-hexanol. This compound has unique chemical properties. The synthetic route is as follows. HPLC of Formula: C6H5F9O

5.00 parts of a compound represented by the formula (I-1-b),Mix 20 parts of tetrahydrofuran and 8.98 parts of pyridine,After stirring for 30 minutes at 23 C., it was cooled at 5 C.In the resulting mixture, formula (I-7-a)9.74 parts of a compound represented byAfter stirring for 1 hour at 5 C.,Stir at 23 C. for 18 hours,Then, it cooled to 23 degreeC. In the reaction product obtained,50 parts and 10% ethyl acetateMix 30 parts of aqueous potassium carbonate solution and stir for 30 minutes atThe organic layer was obtained by liquid separation.In the collected organic layer,Mix 30 parts of deionized water and stir at 23 C. for 30 minutes,The organic layer was obtained by separation.After concentrating the obtained organic layer,The concentrated residue thus obtained was columned (silica gel 60 N (spherical, neutral) 100-210 mum; manufactured by Kanto Chemical Co.,Developing solvent: n-heptane / ethyl acetate = 1/3)By sorting,Compound Represented by Formula (I-7)I got 8.54 copies.

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, 2043-47-2, 1H,1H,2H,2H-Nonafluoro-1-hexanol.

Reference:
Patent; Sumitomo Chemical Co., Ltd.; Mashiyama, Tatsuro; Yasue, Takahiro Hamada; Ichikawa, Koji; (79 pag.)JP2019/52141; (2019); A;,
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Reference of 1454-85-9 , The common heterocyclic compound, 1454-85-9, name is Heptadecan-1-ol, molecular formula is C17H36O, 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.

In a 100 ml, 3 port reaction vessel equipped with a mechanical stirrer, mantle, thermowatch, short-column condenser, cow receiver, thermometers, and a nitrogen blanket, 27.68 grams of hydrophobe group containing compound and 4.34 grams of p-toluenesulfonic acid monohydrate were added. The reactants were heated to about 80° C. and 25 grams of the trithiocarbonate compound was added. A partial vacuum to 60 mmHg mercury was applied and the temperature was increased to about 110° C. for a period of five hours to produce the product shown above.

The synthetic route of 1454-85-9 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Lai, John Ta-Yuan; Hsu, Shui-Jen Raymond; Tamareselvy, Krishnan; US2006/39939; (2006); A1;,
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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. 53463-68-6, name is 10-Bromodecanol, molecular formula is C10H21BrO, 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. HPLC of Formula: C10H21BrO

To 2.00 g of 10-bromo-1-decanol in 15 mL of chloroform (CHCl3) was added dropwise 16.9 mmol of 3,4-dihydro-2H-pyran (DHP) and catalytic amounts of p-toluenesulphonic acid (pTSA). The reaction mixture was stirred for 24 h at room temperature. The organic layer was washed with water (2 .x. 20 mL), NaHCO3 (2 .x. 20 mL), CHCl3 (1 .x. 20 mL), and dried over MgSO4, filtered, and evaporated in vacuo. The crude product was purified using silica gel column chromatography eluting with hexane/ether (9:1). The pure product 2 (Banaszak et al., 2009) was obtained as a colorless oil 2.35 g (7.32 mmol) for a 100percent yield.

With the rapid development of chemical substances, we look forward to future research findings about 53463-68-6.

Reference:
Article; Carballeira, Ne?stor M.; Montano, Nashbly; Cintro?n, Gabriel A.; Ma?rquez, Carmary; Rubio, Celia Ferna?ndez; Prada, Christopher Ferna?ndez; Balan?a-Fouce, Rafael; Chemistry and Physics of Lipids; vol. 164; 2; (2011); p. 113 – 117;,
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Adding a certain compound to certain chemical reactions, such as: 2277-23-8, 2,3-Dihydroxypropyl decanoate, 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, Quality Control of 2,3-Dihydroxypropyl decanoate, blongs to alcohols-buliding-blocks compound. Quality Control of 2,3-Dihydroxypropyl decanoate

Compound 1, 100 mg, compound 2, 76 mg,120 mg of 1-ethyl- (3-dimethylaminopropyl) carbodiimide hydrochloride (EDCI)42 mg of 1-hydroxybenzotriazole (HOBt) was dissolved in 2 ml of THF,The reactants were mixed and replaced with nitrogen three times,After stirring at room temperature for 1 hour.TLC detection (DCM: MeOH = 5: 1), the remaining starting material,The system was concentrated directly and scraped into large plates (DCM: MeOH = 10: 1) to give 51 mg of a light yellow oil.

The synthetic route of 2277-23-8 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Si Fenke Si Pharmaceutical Research And Development (Tianjin) Co., Ltd.; Yao Qingjia; Wu Simin; Xu Yangjun; (6 pag.)CN106749210; (2017); A;,
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Application of 1113-21-9, 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. 1113-21-9, name is 3,7,11,15-Tetramethylhexadeca-1,6,10,14-tetraen-3-ol, molecular formula is C20H34O, 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.

The 5E, 9E, 13E-geranyl geranyl acetone (1) can be prepared by reacting 6E-10E-geranyl linalool (23) with diketene (24) catalyzed by DMAP in ethyl ether to give the ester 25. The ester 25 in the Carroll rearrangement using Al(OiPr)3 at elevated temperature can afford the desired 5E, 9E, 13E-geranyl geranyl acetone (1). In another approach, the GGA (1) can be prepared by treating geranyl linalool (23) with the Meldrum’s acid 26 in the Carroll rearrangement using Al(OiPr)3 at 160 C. Similarly, the use of tert-butyl acetoacetate (27) with geranyl linalool (23) in the Carroll rearrangement can also give the desired 5E,9E,13E-geranyl geranyl acetone (1).

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 1113-21-9, 3,7,11,15-Tetramethylhexadeca-1,6,10,14-tetraen-3-ol.

Reference:
Patent; COYOTE PHARMACEUTICALS, INC.; Look, Gary C.; US2015/133431; (2015); A1;,
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Electric Literature of 13826-35-2, Adding some certain compound to certain chemical reactions, such as: 13826-35-2, name is (3-Phenoxyphenyl)methanol,molecular formula is C13H12O2, 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 13826-35-2.

General procedure: General procedure for the one-pot tandem oxidation-Wittig reaction To a flask containing BaMnO4 (1.2 mmol, 300 mg)and the alcohol (1 mmol) in CH3CN (5 mL) were added PPh3(1.2 mmol, 315 mg) and ethyl bromoacetate (1.2 mmol, 0.13 mL) and the mixturewas stirred at 80 C for 24 h. Then the obtained mixture was filtered and theresulting solution was subjected to column chromatography using n-hexane/ethylacetate to isolate the pure products in 78-93% isolated yields with highstereoselectivity.

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. 13826-35-2, (3-Phenoxyphenyl)methanol, other downstream synthetic routes, hurry up and to see.

Reference:
Article; Gholinejad, Mohammad; Firouzabadi, Habib; Bahrami, Maedeh; Najera, Carmen; Tetrahedron Letters; vol. 57; 33; (2016); p. 3773 – 3775;,
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Reference of 756520-66-8, Adding some certain compound to certain chemical reactions, such as: 756520-66-8, name is 1-(2,6-Dichloro-3-fluorophenyl)ethanol,molecular formula is C8H7Cl2FO, 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 756520-66-8.

General procedure: The reaction mixture was composed by a 3 mL solution of0.048 mmol 1-(2,6-dichloro-3-fluoro-phenyl)-ethanol, 0.096 mmolacyl donor and 60 mg of enzyme (20% w/v) in solvent. The screeningreactions were performed in silicon carbide plates at temperaturesof 60-80 C, under magnetic stirring to obtain 1-(2,6-dichloro-3-fluorophenyl)ethyl acetate (1H NMR (300 MHz, CDCl3)d 7.26 (dd, J = 8.3, 5.6 Hz, 5H), 7.03 (t, J = 8.5 Hz, 3H), 6.39 (q,J = 7.1 Hz, 3H), 2.09 (s, 3H), 1.66 (d, J = 6.9 Hz, 3H). In order toscreen the influence of the different reaction medium?s components,enzymes, solvent, acyl donor and temperature were evaluated.A 20 mL aliquot was transferred to a new vial and 980 mL ofethyl acetate was added and analyzed in the GC-FID.

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. 756520-66-8, 1-(2,6-Dichloro-3-fluorophenyl)ethanol, other downstream synthetic routes, hurry up and to see.

Reference:
Article; de Franca, Alexandre da S.; Silva, Marcus V.M.; Neves, Rebeca V.; de Souza, Stefania P.; Leao, Raquel A.C.; Monteiro, Carlos M.; Rocha, Angelo; Afonso, Carlos A.M.; de Souza, Rodrigo O.M.A.; Bioorganic and Medicinal Chemistry; vol. 26; 7; (2018); p. 1333 – 1337;,
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Application of 575-03-1, 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. 575-03-1, name is 7-Hydroxy-4-(trifluoromethyl)coumarin, molecular formula is C10H5F3O3, 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.

General procedure: To around bottomed flask equipped with a magnetic stir bar were added, the7-hydroxycoumarin substrate (1 equiv.), acetone (25 mL/mmol of substrate), and K2CO3 (3 equiv.). The solution wasstirred for 5 minutes at room temperature followed by addition of R3-X (1 equiv.; R3 = alkyl, X = Br or OTs.). The reaction mixture was placed under anArgon atmosphere (balloon) and stirred at reflux temperature for 16 hours atwhich point complete consumption of substrate was observed by TLC in all cases. The reaction was cooled to r.t., poured intowater, and extracted with EtOAc (x 3). The combined extracts were dried over MgSO4. The solvent was removed in vacuo and theremaining residue purified via flash chromatography over silica gel using gradient elution with EtOAc and Hexanes to yield Compounds 18-28. 

According to the analysis of related databases, 575-03-1, the application of this compound in the production field has become more and more popular.

Reference:
Article; Farley, Conner M.; Dibwe, Dya Fita; Ueda, Jun-Ya; Hall, Eric A.; Awale, Suresh; Magolan, Jakob; Bioorganic and Medicinal Chemistry Letters; vol. 26; 5; (2016); p. 1471 – 1474;,
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Application of 355-80-6, 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 355-80-6, name is 2,2,3,3,4,4,5,5-Octafluoro-1-pentanol. This compound has unique chemical properties. The synthetic route is as follows.

General procedure: To a solution of 64.7 mmol of organyl dichlorophosphite 3 in 150 mL of an organic solvent [diethyl ether (3a), dichloromethane(60 mL) (3b), hexane (3c, 3d)] was added dropwise with stirring a solution of 155 mmol of polyfluoroalkanol 4 or 5 and 155 mmol ( 15.7 g) of triethylamine in 30 mL of the corresponding solvent for 1-2 h at low temperature [-10-8C (3a, 3b), -30-25C (3c, 3d), dry ice-acetone]. The formation of a white precipitate of triethylamine hydrochloride was observed. The reaction mixture was stirred for 1-2 h at room temperature, argon was passed to remove HCl, and the mixture was kept overnight in the case of obtaining compounds 6a and 6b. The precipitate (triethylamine hydrochloride) was filtered off, washed (3 × 30 mL) with diethyl ether (3a) or hexane (3b-3d). Washings and the filtrate were combined, the solvents were distilled off under reduced pressure, and the residue was distilled in vacuum. To prevent symmetrization of the aryl bis(polyfluoroalkyl) phosphites 6c and 6d, the distillation flask was placed into a heated glycerin bath (100-120) and distillation was carried out rapidly.

According to the analysis of related databases, 355-80-6, the application of this compound in the production field has become more and more popular.

Reference:
Article; Arbuzova, S. N.; Belogorlova, N. A.; Bishimbayeva, G. K.; Chernysheva, N. A.; Gusarova, N. K.; Malysheva, S. F.; Nalibayeva, A. M.; Oparina, L. A.; Trofimov, B. A.; Verkhoturova, S. I.; Yas?ko, S. V.; Russian Journal of General Chemistry; vol. 90; 5; (2020); p. 839 – 844; Zh. Obshch. Khim.; vol. 90; 5; (2020); p. 744 – 750;,
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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. 60666-70-8, name is (2-Bromo-5-chlorophenyl)methanol. A new synthetic method of this compound is introduced below., HPLC of Formula: C7H6BrClO

Compound 17-3 (0421) To a solution of compound 17-2 (8.0 g, 36.1 mmol) in THF (60 mL) was added NaH (60percent, 1.88 g, 46.9 mmol) at 0° C. After addition, the reaction mixture was stirred at room temperature for 30 min. Iodomethane (10.25 g, 72.2 mmol) was added and stirred for another 30 min. The reaction was then quenched with sat. ammonium chloride (50 mL) and extracted with ethyl acetate (50 mL×3). The combined organic layers were washed with brine (60 mL), dried over Na2SO4, filtered, concentrated to afford 17-3 as a white solid (7.23 g, yield 85percent).

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, 60666-70-8, (2-Bromo-5-chlorophenyl)methanol.

Reference:
Patent; Nivalis Therapeutics, Inc.; Wasley, Jan; Rosenthal, Gary J.; Sun, Xicheng; Strong, Sarah; Qiu, Jian; US9138427; (2015); B2;,
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