Category: alcohols-buliding-blocks

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. 35364-79-5, name is 2-(3,4-Dichlorophenyl)ethanol, the common compound, a new synthetic route is introduced below. Computed Properties of C8H8Cl2O

General procedure: The starting material, 2-(3,4-dimethoxyphenyl)-ethan-1-ol (521 mg, 2.86 mmol, 1.0 equiv) was dissolved in dichloromethane (20 mL) and imidazole (583 mg, 8.58 mmol, 3.0 equiv) was added. The mixture was stirred for 5 minutes. tert-Butyldimethylsilyl chloride (518 mg, 3.43 mmol, 1.2 equiv) was added and the reaction mixture was stirred at room temperature for 1 hr. Water (20 mL) and dichloromethane (20 mL) were added and the mixture was shaken in a separating funnel. The aqueous layer was separated and washed with dichloromethane (2 x 5 mL). The combined organic layers were washed with water (20 mL), brine (20 mL) and dried over MgSO4. Following filtration, the solvent was removed under reduced pressure. The crude material was purified by column chromatography on silica gel (eluting with a gradient from petroleum ether to 1:1 petroleum ether : ether) to afford 820mg of 1a (97%).

The synthetic route of 35364-79-5 has been constantly updated, and we look forward to future research findings.

Reference:
Article; O’Brien, Matthew; Konings, Lisette; Martin, Matthew; Heap, Jordan; Tetrahedron Letters; vol. 58; 25; (2017); p. 2409 – 2413;,
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Adding a certain compound to certain chemical reactions, such as: 80466-51-9, 1-(Benzylamino)-2-methylpropan-2-ol, 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, Product Details of 80466-51-9, blongs to alcohols-buliding-blocks compound. Product Details of 80466-51-9

A mixture of methyl 3-bromo-2-(bromomethyl)propanoate (1.2 equiv.), 1-(benzylamino)- 2-methylpropan-2-ol (1 equiv.), and potassium carbonate is dissolved in acetone. The solution is heated to reflux and allowed to stir until the starting material is consumed as judged by TLC or LCMS analysis. The mixture is then cooled to room temperature and filtered. The filtrate is evaporated under reduced pressure to give the desired cyclized adduct see for example PCT Int. Appl., 2010139481.

The synthetic route of 80466-51-9 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; C4 THERAPEUTICS, INC.; PHILLIPS, Andrew, J.; NASVESCHUK, Chris, G.; HENDERSON, James, A.; LIANG, Yanke; LAZARSKI, Kiel; MICHAEL, Ryan, E.; (771 pag.)WO2017/197036; (2017); A1;,
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Adding a certain compound to certain chemical reactions, such as: 20017-67-8, 3,3-Diphenyl-1-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, 20017-67-8, blongs to alcohols-buliding-blocks compound. Product Details of 20017-67-8

Example 13 3-[4-(3,3-Diphenyl-propoxy)-phenyl]-2-ethoxy-propionic acid ethyl ester Reaction of 3,3-diphenyl-propan-1-ol (110 mg, 0.5 mmol), triphenylphosphine (145 mg, 0.55 mmol), 2-ethoxy-3-(4-hydroxy-phenyl)-propionic acid ethyl ester (140 mg, 0.6 mmol) and diethylazodicarboxylate (0.09 mL, 0.55 mmol) in an identical manner to Example 1 gave the title compound (120 mg). 1H NMR (CDCl3, 300 MHz); delta 1.10-1.29 (6H, 2*CH3), 2.44-2.55 (2H, CH2), 2.90-2.95 (2H, CH2), 3.28-3.39 and 3.51-3.62 (2H, OCH2), 3.80-3.89 (2H, CH2), 3.90-3.95 (1H, CHCO2), 4.10-4.28 (3H, arylCH and OCH2), 6.70-6.77 (2H, aryl), 7.05-7.35 (remaining H, aryl). MS calcd for C28H32O4 432.6, Found 432.3.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,20017-67-8, its application will become more common.

Reference:
Patent; Novo Nordisk, A/S; US6972294; (2005); B1;,
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Synthetic Route of 62285-58-9 , The common heterocyclic compound, 62285-58-9, name is (2,6-Dimethylphenyl)methanol, molecular formula is C9H12O, 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.

Step B: Preparation of Ethyl 2-(3-(2,6-dimethylbenzyloxy)-4-methoxyphenyl)acetate:; A solution of 2,6-Dimethylbenzyl alcohol (3.23 g, 23.7 mmol) and diisopropyl azodicarboxylate (DIAD, 5.23 g, 25.9 mmol) in THF (20 ml) was added drop wise to a solution of Ethyl 2-(3-Hydroxy-4-methoxyphenyl)acetate (Step A, 5.48 g, 26.12 mmol) and triphenylphosphine (6.79g, 25.9 mmol) in THF (100 ml) at O0C. The reaction mixture was stirred at room temperature for 4 hours, diluted with ether and washed with water and brine. The organic layer was dried over Na2SO4, filtered, concentrated, and purified by flash chromatography on a silica gel column (hex: ethyl acetate 4:1) to give the title compound. 1H NMR (270 MHz, CDCl3): 1.2 (t, 3H); 2.3 (s, 6H); 3.5 (s, 2H); 3.8 (s, 3H); 4.1 (q, 2H); 5.1 (s, 2H); 6.9 (m, 2H); 7.15-7.35 (m, 4H).

The synthetic route of 62285-58-9 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; WELLSTAT THERAPEUTICS CORPORATION; WO2009/151695; (2009); 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. 13826-35-2, name is (3-Phenoxyphenyl)methanol, molecular formula is C13H12O2, 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. Formula: C13H12O2

first step: A solution of IV-1 (3-phenoxyphenyl) methanol (0.5 g, 2.5 mmol) obtained in the previous step was dissolved in 30 ml of dichloromethane, and 20 ml of SOCl2 was added to 1 ml of DMF as a catalyst,25 C for 2 hours, After the TLC detection reaction was complete, the reaction solution was evaporated under reduced pressure to give excess SOCl2 to give a pale yellow oil IV-2 which was used directly in the next step.

With the rapid development of chemical substances, we look forward to future research findings about 13826-35-2.

Reference:
Patent; China Pharmaceutical University; Huang Wenlong; Qian Hai; Liu Chunxia; Li Zheng; Yang Jianyong; Bi Xinzhou; Cai Xingguang; (20 pag.)CN107162913; (2017); A;,
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Application of 349-75-7, 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. 349-75-7, name is (3-(Trifluoromethyl)phenyl)methanol, molecular formula is C8H7F3O, 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.

13.1 Ethyl 5-trimethylsilyl-1-[[(3-trifluoromethyl)phenyl]methyl]-1H-indole-2-carboxylate 0.51 ml (3.749 mmol) of 3-(trifluoromethyl)phenylmethanol and 0.9 g (3.749 mmol) of (cyanomethylene)tributylphosphorane (CMBP) are added, at ambient temperature, to a solution of 0.49 g (1.87 mmol) of ethyl 5-trimethylsilyl-1H-indole-2-carboxylate, obtained according to the protocol described in stage 3.4, in 8 ml of dry toluene, maintained under an inert atmosphere. The reaction mixture is stirred at 110 C. for 15 hours and then concentrated to dryness. The reaction crude is subsequently purified by flash chromatography on a silica gel column, elution being carried out with a mixture of hexane and ethyl acetate, to give 0.73 g of the expected ethyl 5-trimethylsilyl-1-[[(3-trifluoromethyl)phenyl]methyl]-1H-indole-2-carboxylate. 1H NMR (DMSO D6), delta (ppm): 7.90 (s, 1H); 7.62-7.57 (m, 2H); 7.51-7.43 (m, 3H); 7.40 (s, 1H); 7.17 (d, 1H); 5.92 (s, 2H); 4.28 (q, 2H); 1.26 (t, 3H); 0.27 (s, 9H). LC-MS: 420 ([M+H]+, Rt=3.62).

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 349-75-7, (3-(Trifluoromethyl)phenyl)methanol.

Reference:
Patent; SANOFI-AVENTIS; US2011/9365; (2011); 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 4728-12-5, name is (2,2-Dimethyl-1,3-dioxan-5-yl)methanol. This compound has unique chemical properties. The synthetic route is as follows. Recommanded Product: 4728-12-5

To a solution of (2,2-dimethyl-l,3-dioxan-5-yl)methanol (1.078 g) in dichloromethane (20 mL) were added TEA (2.056 mL) and para-toluenesulfonyl chloride (1.687 g). The reaction mixture was stirred at room temperature for 4 hours and concentrated. The concentrate was partitioned between water and ethyl acetate. The organic layer was washed with brine, dried over Na2SO4, filtered and concentrated. The cruconcentrate was purified by flash chromatography (Analogix SF25chi40g with 10percent ethyl acetate/hexanes). MS (ESI) m/z 301.1 (M+l)+, 318.2 (M+18)+.

With the rapid development of chemical substances, we look forward to future research findings about 4728-12-5.

Reference:
Patent; ABBOTT LABORATORIES; WO2009/129385; (2009); A1;,
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Synthetic Route of 575-03-1, 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 575-03-1, name is 7-Hydroxy-4-(trifluoromethyl)coumarin. This compound has unique chemical properties. The synthetic route is as follows.

To a 100 mL reaction flask was added 2.8 g (0.01 mol) of dihydroartemisinin and 1.01 g (0.01 mol) of triethylamine,30 mL of dry methylene chloride was added, stirred to dissolve, cooled to -5 ° C, and 1.4 mL (0.01 mol) of trifluoroacetic acid Anhydride, and the reaction was continued at 0 ° C for 8 hours to obtain 10-trifluoroacetoxy dihydroartemisinin in dichloromethane, without Need to be processed, directly for the next step reaction. To the solution prepared above, 2.3 g of 7-hydroxy-4-trifluoromethylcoumarin was added (0.01 mol), and the reaction was continued for 14 hours at room temperature (TLC monitoring reaction end point). To the reaction solution was further added 30 mLDichloromethane, the organic layer was separated and washed 5 times (5 x 20 mL) with saturated sodium bicarbonate solution, dried over anhydrous sodium sulfate Phase, the desiccant was filtered off and the dichloromethane was distilled off under reduced pressure to give the crude product which was purified by column chromatography (200-300 mesh silica gel, petroleum ether: acetic acid Ethyl ester = 8: 1) to give 2.53 g of a white solid in 51percent yield.

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

Reference:
Patent; Shenyang Pharmaceutical University; Guo, Chun; Tian, Ye; Hou, Zhuang; Guo, Mengbi; Li, Jianteng; Mou, Yanhua; Xia, Mingyu; (25 pag.)CN106188088; (2016); A;,
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Related Products of 4277-34-3, Adding some certain compound to certain chemical reactions, such as: 4277-34-3, name is Cyclooct-4-enol,molecular formula is C8H14O, 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 4277-34-3.

(Z)-Cyclooct-4-enol (2.0 g, 15.8 mmol) was added slowly to a suspension of sodium hydride (1.3 g of 60% dispersion in mineral oil, 31.7 mmol) in 50 mL THF. This was stirred at reflux for 1 hour, then a solution of iodoacetic acid (2.9 g, 15.8 mmol) in 10 mL THF was added and reflux was continued for 4 hours, then the reaction was cooled to room temperature and concentrated under reduced pressure. The residue was dissolved in 10% NaOH(aq) (50 mL) and extracted with Et2O (2×25 mL). The pH of the aqueous solution was lowered to (4) by the addition of 6N HCl and extracted again with DCM (2×25 mL). Separately, the organic solutions were dried (MgSO4), filtered, and concentrated by rotary evaporator. The ether extraction resulted in 1.0 g of starting (Z)-cyclooct-4-enol and the DCM extraction resulted in 1.9 g of (Z)-2-cyclooct-4-enyloxy)acetic acid (2) (65.5% yield).

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. 4277-34-3, Cyclooct-4-enol, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; THE GENERAL HOSPITAL CORPORATION; Reiner, Thomas; Keliher, Edmund J.; Weissleder, Ralph; US2013/309170; (2013); A1;,
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Electric Literature of 111-45-5, 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 111-45-5, name is 2-(Allyloxy)ethanol. This compound has unique chemical properties. The synthetic route is as follows.

General procedure: In the fume hood, a 3 mL vial equipped with a screw cap and a magnetic stirring bar was charged with thecatalyst (0.01 mmol), and with 1 mmol of allylbenzene (stored under air). THF (stored under air) was added to the flaskto obtain 0.25 mL of a 4 M solution. The cap was closed and the reaction mixture was stirred and heated in an oil bathat 35 C. Conversions, yields, and Z-selectivities were determined from analysis of the 1H NMR spectrum.(28)

According to the analysis of related databases, 111-45-5, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Bergen Teknologioverf°ring AS; Jensen, Vidar Remi; Occhipinti, Giovanni; EP2826783; (2015); A1;,
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