Tag: M.W=200-300

Electric Literature of 5333-42-6, 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 5333-42-6 as follows.

Example 13 Preparation of 2-octyldodecyl 2-(2-(2-methoxyethoxy)ethoxy)acetate To a 3-neck 1000 ml round-bottomed flask was added 2-octyl-1-dodecanol (220.00 g, 736.89 mmol, 1.0 equiv.), 2-(2-(2-methoxyethoxy)ethoxy)acetic acid (170.693 g, 957.95 mmol, 1.30 equiv.), toluene (200 ml) and p-toluenesulfonic acid monohydrate (1.4017 g, 7.3688 mmol, 0.010 equiv.) at room temperature. The resulting mixture was heated at reflux with stirring in an oil bath at 134 C. under a nitrogen atmosphere for 6 hours. The water produced in the reaction was collected in a Dean-Stark trap. The cooled mixture was diluted with diethyl ether, washed with dilute aqueous Na2CO3 solution, water, brine, dried (MgSO4), filtered, and concentrated in vacuo to afford a crude product. Excess solvent was further removed by heating the crude product with stirring in an oil bath under high vacuum for 2 hours to afford a clear light yellow liquid (319.67 g, 94%).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,5333-42-6, its application will become more common.

Reference:
Patent; ExxonMobil Research and Engineering Company; Ng, Man Kit; Oumar-Mahamat, Halou; Cheng, Hong; Blain, David A.; Cooper, Kathleen K.; Carey, James T.; Douglass, Michael R.; Kanga, Percy R.; Patil, Abhimanyu O.; Bodige, Satish; Lewis, Kyle G.; Hagemeister, Mark P.; (40 pag.)US2017/183595; (2017); A1;,
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Synthetic Route of 20017-67-8, 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. 20017-67-8, name is 3,3-Diphenyl-1-propanol. A new synthetic method of this compound is introduced below.

A solution (5 ML) of 1-(2-hydroxy-5-nitrophenyl)propan-1-one (500 mg, 2.56 mmol), 3,3-diphenylpropanol (765 mg, 3.84 mmol), 1,1-(azodicarbonyl)dipiperidine (969 mg, 3.84 mmol) and triphenylphosphine (1.01 g, 3.84 mmol) in toluene was stirred for 4 hours at 80C, and to the reaction solution were added 3,3-diphenylpropanol (765 mg, 3.84 mmol), 1,1-(azodicarbonyl)dipiperidine (969 mg, 3.84 mmol), triphenylphosphine (1.01 g, 3.84 mmol) and toluene (5 ML).. The mixture was stirred for 4 hours at 80C. To the reaction solution were further added 3,3-diphenylpropanol (765 mg, 3.84 mmol), 1,1-(azodicarbonyl)dipiperidine (967 mg, 3.84 mmol), triphenylphosphine (1.01 g, 3.84 mmol) and toluene (5 ML), and the mixture was stirred for 12 hours at 80C. The reaction solution was poured into water, and was extracted with ethyl acetate.. The extracted solution was washed with water, was dried with anhydrous magnesium sulfate, and the solvent was distilled off under reduced pressure.. The residue was purified by silicagel column chromatography (hexane:ethyl acetate = 20:1), to obtain the titled compound as oil. 600 mg (60.2%) 1H-NMR (CDCl3) delta; 1.23 (3H, t, J = 7.2 Hz), 2.58 – 2.69 (2H, m), 3.04 (2H, q, J = 7.2 Hz), 4.07 to 4.25 (3H, m), 6.87 (1 H, d, J = 9.0 Hz), 7.15 to 7.36 (10H, m), 8.24 (1H, dd, J = 9.0, 2.8 Hz), 8.55 (1H, d, J = 2.8Hz)

At the same time, in my other blogs, there are other synthetic methods of this type of compound,20017-67-8, 3,3-Diphenyl-1-propanol, and friends who are interested can also refer to it.

Reference:
Patent; Takeda Chemical Industries, Ltd.; EP1437344; (2004); A1;,
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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 149965-40-2, name is (5-Bromo-2-chlorophenyl)methanol. This compound has unique chemical properties. The synthetic route is as follows. Product Details of 149965-40-2

(5-Bromo-2-chloro-benzyloxy)-tert-butyl-dimethyl-silane.TBDMS-Cl (10.6 g, 66.7 mmol) was added to a sol. of (5-bromo-2-chloro-phenyl)- methanol (12.8 g, 55.6 mmol) and imidazole (9.42 g, 138 mmol) in DMF (190 mL) at 0 0C. The mixture was stirred for 2 h at 0 0C, and aq. sat. NH4Cl was added. The mixture was extracted with heptane (2x). The combined org. extracts were dried over MgSO4, filtered, and the solvents were removed under reduced pressure. Purification of the residue by FC (heptane ? EtOAc/heptane 1 :49) yielded the title compound (18.0 g, 96%). LC-MS: tR = 1.22 min.

With the rapid development of chemical substances, we look forward to future research findings about 149965-40-2.

Reference:
Patent; ACTELION PHARMACEUTICALS LTD; WO2007/88514; (2007); A1;,
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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. 7541-49-3, name is 3,7,11,15-Tetramethylhexadec-2-en-1-ol, the common compound, a new synthetic route is introduced below. name: 3,7,11,15-Tetramethylhexadec-2-en-1-ol

Phytol (2.0 g, 6.7 mmol) was dissolved in ethanol, rhodium 5% on alumina was added and mixture was placed under H2 60 psi and shaken overnight. The reaction mixture was filtered and evaporated to give the desired compound as an oil (2.0 g, 100% yield).

The synthetic route of 7541-49-3 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; CHIMERIX, INC.; UNIVERSITY OF CALIFORNIA, SAN DIEGO; WO2007/130783; (2007); A2;,
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Synthetic Route of 1992-09-2, Adding some certain compound to certain chemical reactions, such as: 1992-09-2, name is 2-(4-Amino-3-methylphenyl)-1,1,1,3,3,3-hexafluoropropan-2-ol,molecular formula is C10H9F6NO, 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 1992-09-2.

2.73 g of 2-(3′-methyl-4′-aminophenyl)-1,1,1,3,3,3-hexafluoro-2-propanolCompound of formula VAnd 4.89 g of cesium carbonate was added to the dried reaction flask,Add in 20 ml of DMF and stir at room temperature for 30 minutes.1.70 g of methyl iodide was slowly added to the reaction flask with a syringe,Stirring was continued at room temperature and TLC was detected until the conversion of the starting material was complete.After the reaction was completed, it was extracted with a saturated aqueous solution of ammonium chloride and ethyl acetate.The organic phase was dried over anhydrous sodium sulfate and dried under reduced pressure.The crude oily intermediate VIa was obtained for subsequent reaction.

According to the analysis of related databases, 1992-09-2, the application of this compound in the production field has become more and more popular.

Reference:
Patent; East China University of Science and Technology; Cao Song; Zhao Xianghu; He Jingjing; Li Jialu; Liu Yisen; Li Chunmei; Xu Sixue; Huang Qingchun; (19 pag.)CN110272361; (2019); A;,
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Related Products of 83647-43-2, Adding some certain compound to certain chemical reactions, such as: 83647-43-2, name is (3-Bromo-2-methylphenyl)methanol,molecular formula is C8H9BrO, 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 83647-43-2.

Step B: 5-Bromo-4-methyl-2-benzofuran-l(3H)-one To a flask charged with (3-bromo-2-methylphenyl)methanol (6.0 g, 30 mmol) was added a 1M trifluoroacetic acid solution of thallium trifluoroacetate (16.2 g, 29.8 mmol). The mixture was stirred at RT overnight. The solvent was removed under vacuum, and the residue was pumped under high vacuum for 30 min to ensure complete removal of TFA. To the residue was then added palladium(II) chloride (529 mg, 2.98 mmol), lithium chloride (2.53 g, 59.7 mmol), magnesium oxide (2.41 g, 59.7 mmol), and methanol (150 mL). The reaction was flushed with CO twice, and kept under CO at room temperature. Analysis by LC showed a big product spot within 2 hours. To this solution was added ethyl acetate to precipitate the salts. The black solution was filtered through a diatomaceous earth pad, washed with EtOAc, adsorbed onto silica and purified by silica gel chromatography to afford 5-bromo-4-methyl-2-benzofuran-l(3H)-one. 1H-NMR (500 MHz, CDC13) delta ppm 7.71 (d, J= 8.0 Hz, 1H), 7.58 (d, J 2H), 2.37 (s, 3H).

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. 83647-43-2, (3-Bromo-2-methylphenyl)methanol, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; MERCK SHARP & DOHME CORP.; WALSH, Shawn; PASTERNAK, Alexander; CATO, Brian; FINKE, Paul, E.; FRIE, Jessica; FU, Qinghong; KIM, Dooseop; PIO, Barbara; SHAHRIPOUR, Aurash; SHI, Zhi-Cai; TANG, Haifeng; WO2013/39802; (2013); 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.4654-39-1, name is 2-(4-Bromophenyl)ethanol, molecular formula is C8H9BrO, molecular weight is 201.06, as common compound, the synthetic route is as follows.Computed Properties of C8H9BrO

The reaction kettle was charged with 4-bromophenethyl alcohol (1.0 kg, 5.0 mol) 10 times the volume of methylene chloride dissolved, Triethylamine (1.01 kg, 10.0 mol) And catalytic amount of DMAP, TBSCl (0.9 kg, 6.0 mol) was added in batches. Reaction to the disappearance of raw materials at room temperature, Washed, Saturated brine, After drying with anhydrous sodium sulfate, the liquid compound VA (1.5 kg, 95.5%) was obtained as a colorless oil. Directly into the next reaction.

At the same time, in my other blogs, there are other synthetic methods of this type of compound,4654-39-1, 2-(4-Bromophenyl)ethanol, and friends who are interested can also refer to it.

Reference:
Patent; Hangzhou Lide Biological Technology Co., Ltd.; Ren Guobao; Wu Yan; Li Chuanbin; (6 pag.)CN106565467; (2017); A;,
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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. 4654-39-1, name is 2-(4-Bromophenyl)ethanol. A new synthetic method of this compound is introduced below., SDS of cas: 4654-39-1

To a mixture of 2-(4- bromophenyl)ethanol (10.0 g, 49.7 mmol) in DCM (100 mL) were added imidazole (10.0 g, 149.2 mmol) and TBSC1 (8.2 g, 54.7 mmol) at 0 C. After stirring at room temperature for 3 h, the reaction mixture was quenched with water, extracted with DCM. The organic layer was washed with brine, dried over Na2S04, filtered and concentrated. The crude was purified by silica gel column (PE: EA = 50: 1) to get (4-bromophenethoxy)(tert-butyl)dimethylsilane (16.2 g, 99%) as a colorless oil.

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, 4654-39-1, 2-(4-Bromophenyl)ethanol.

Reference:
Patent; NIKANG THERAPEUTICS, INC.; LOU, Yan; FU, Jiping; HE, Yigang; (0 pag.)WO2020/14332; (2020); 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.73978-41-3, name is (2,4-Diaminopteridin-6-yl)methanol hydrochloride, molecular formula is C7H9ClN6O, molecular weight is 228.639, as common compound, the synthetic route is as follows.Recommanded Product: (2,4-Diaminopteridin-6-yl)methanol hydrochloride

0J 89j 4 FontWeight=”Bold” FontSize=”10″ Araino FontWeight=”Bold” FontSize=”10″ 4-deoxy-l O-A^nethyipterok Acid (APA, 2) ( raovec. I; Spencer, G.; Blair, A. H.; Mammen, M; Singh, M,; Ghose, T. J. Med Chem., 1989, 32, 2426). A mixture of 249 rag (0.59 mraol) dibromotripheaylphosphorane and 45,0 mg (0.20 tnmol) 2,4-diaraino-6-(hydr )xymethyl)pteridin.e hydrochloride (1) in 1 .5 mL of anhydrous dmieihylacetamide was stirred at room iemperatare for 24 h under an argon atmosphere. To the reaction mixture were added 41 mg (0.27 mmol) of 4-(methylamino)benzoic acid and 0,16 mL { 116 mg, 0,90 mmol) of DIPEA and the reaction mixture was stirred at room temperature for 48 h, and then at 60 ‘”‘C for 24 fi. The cooled reaction mixture was poured into 25 mL of 0.33 M aq NaOH and the precipitate was filtered. The filtrate was adjusted to H 5.5 with 10% acetic acid and the resulting precipitate was collected through filtration, washed wi h water and dried under diminished pressure at 80 C overnight to obtain 2 as an orange solid: yield 42 mg (56%); silica gel TLC – 0.47 (5:4: 1 chlorofornv-methanol-water); lH NM (DMSO-<&) o 3.19 (s, 3H), 4.76 (s, 2H), 6.61 (s, 2H>, 6.78 (d, 21i J- 8.9 Hz), 7.72 (d, 2H, J- 8.7 Hz) and 8.56 (s, 1H).

At the same time, in my other blogs, there are other synthetic methods of this type of compound,73978-41-3, (2,4-Diaminopteridin-6-yl)methanol hydrochloride, and friends who are interested can also refer to it.

Reference:
Patent; ARIZONA BOARD OF REGENTS, FOR AND ON BEHALF OF, ARIZONA STATE UNIVERSITY; HECHT, Sidney; PAUL, Rakesh; TANG, Chenhong; MADATHIL, Manikandadas; BHATTACHARYA, Chandraball; WO2014/145109; (2014); 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.2077-19-2, name is 2-(4-Bromophenyl)propan-2-ol, molecular formula is C9H11BrO, molecular weight is 215.09, as common compound, the synthetic route is as follows.HPLC of Formula: C9H11BrO

tert-Butyldimethylsilyl chloride (2.1O g, 14 mmol) was added to a mixture of 2-(4-bromophenyl)-propan-2-ol (2.0 g, 9.3 mmol) and imidazole (0.95 g 14 mmol) in DMF (30 mL) and the resultant mixture was stirred at 80 C for 24 h. The mixture was concentrated to one third of the original volume then diluted with water (50 mL) and extracted with diethyl ether (3 x 50 mL). The combined organic layer was dried over anhydrous sodium sulfate, filtered and evaporated in vacuo. The resultant residue was purified by chromatography (silica, 5Og column, Si-SPE, 0-5% diethyl ether in pentane) to afford the title compound as a colourless oil (1.39 g, 46%). 1H NMR (MeOD, 400MHz): 7.46-7.37 (m, 4H); 1.56 (s, 6H); 0.95-0.91 (m, 9H); 0.06 (s, 6H).

At the same time, in my other blogs, there are other synthetic methods of this type of compound,2077-19-2, 2-(4-Bromophenyl)propan-2-ol, and friends who are interested can also refer to it.

Reference:
Patent; GENENTECH, INC.; WO2009/151598; (2009); A1;,
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