Category: 149965-40-2

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. 149965-40-2, name is (5-Bromo-2-chlorophenyl)methanol, the common compound, a new synthetic route is introduced below. Recommanded Product: (5-Bromo-2-chlorophenyl)methanol

[179.1] (5-Bromo-2-chlorophenyl)methanol (8.187 g) was dissolved in 100 ml of toluene, 12.2 g of diphenylposhorazide and 6.52 ml of diazabicycloundecene were added successively, and the mixture was stirred overnight at room temperature. After ethyl acetate was added thereto, the reaction mixture was successively washed with water and brine, dried over anhydrous magnesium sulfate, and the solvent was removed. The residue was purified by silica gel column, to give 9.75 g of the title compound in the 50:1 hexane-ethyl acetate fraction.1H-NMR(CDCl3) delta: 4.48 (s, 2H) 7.28 (d, J=8.4Hz, 1H) 7.41 (dd, J=2.4, 8.4Hz, 1H) 7.56 (d, J=2.4Hz, 1H)

The synthetic route of 149965-40-2 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Eisai Co., Ltd.; EP1394147; (2004); A1;,
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Reference of 149965-40-2 , The common heterocyclic compound, 149965-40-2, name is (5-Bromo-2-chlorophenyl)methanol, molecular formula is C7H6BrClO, 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.

(5-bromo-2-chlorophenyl)methan-1-ol (2.00 g; 9.03 mmol; 1.00 eq.) was dissolved in DMF (30 mL), then the mixture was cooled down to 0C. Imidazole (1.54 g; 22.58 mmol; 2.50 eq.) and tert-butyldimethylsilyl chloride (1.88 mL; 10.84 mmol; 1.20 eq.) were added and the mixture was stirred 2h at 0 C, then 2h at rt. The reaction mixture was concentrated and diluted with EtOAc. The resulting organic phase was washed with saturated aqueous NH4Cl solution, dried over MgSO4, filtered and concentrated to dryness to give crude (5-bromo-2-chloro-phenyl)methoxy-tert-butyl-dimethyl-silane (3.47 g; quantitative), used in the next step without purification. 1H NMR (DMSO-d6, 300 MHz): delta 7.52 (m, 1H); 7.40 (m, 1H); 7.29 (d, J = 8.4 Hz, 1H); 4.61 (s, 2H); 0.80 (s, 9H); 0.00 (s, 6H).

The synthetic route of 149965-40-2 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Inventiva; BARTH, Martine; CONTAL, Sylvie; JUNIEN, Jean-Louis; MASSARDIER, Christine; MONTALBETTI, Christian; SOUDE, Anne; EP3632908; (2020); A1;,
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Electric Literature of 149965-40-2, Adding some certain compound to certain chemical reactions, such as: 149965-40-2, name is (5-Bromo-2-chlorophenyl)methanol,molecular formula is C7H6BrClO, 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 149965-40-2.

A mixture of 5-bromo-2-chlorobenzyl alcohol (2.22 g), tert-butyldimethylsilyl chloride(2.26 g), imidazole (1.36 g) and DMF (25 ml) was stirred at ambient temperature for 1 hour.The mixture was evaporated and the residue was partitioned between ethyl acetate and water.The organic phase was washed in turn with water and with a saturated brine solution, driedover anhydrous sodium sulphate and evaporated. The residue was purified by columnchromatography on silica using an increasingly polar gradient of from 0% to 40% ethyl acetatein isohexane as eluent. There was thus obtained 3-ter^butyldimethylsilyloxymethyl-4-chlorobromobenzene as an oil (2.78 g) which was used without further purification.

According to the analysis of related databases, 149965-40-2, the application of this compound in the production field has become more and more popular.

Reference:
Patent; ASTRAZENECA AB; ASTRAZENECA UK LIMITED; WO2006/5914; (2006); A1;,
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Adding a certain compound to certain chemical reactions, such as: 149965-40-2, (5-Bromo-2-chlorophenyl)methanol, 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, category: alcohols-buliding-blocks, blongs to alcohols-buliding-blocks compound. category: alcohols-buliding-blocks

General procedure: . To a solution of the benzyl alcohol in DCM (400mL) was added Dess-Martinperiodinane (216g, 510mmol) at 0oC,the mixture was allowed to warm to room temperature and stirred for 2h. Thereaction mixture was cooled to 0oC. Saturated NaHCO3 solution was added slowly to quench the reaction and stirred until it no gasgenerated. The reaction mixture washed with brine. The organic layer was driedover Na2SO4, filtered and evaporated in vacuo. The cruderesidue was purified by column chromatography on silica gel (hexane) to yield the title compound.

At the same time, in my other blogs, there are other synthetic methods of this type of compound,149965-40-2, (5-Bromo-2-chlorophenyl)methanol, and friends who are interested can also refer to it.

Reference:
Article; Ding, Yuyang; Mao, Liufeng; Xu, Dengfeng; Xie, Hui; Yang, Ling; Xu, Hongjiang; Geng, Wenjun; Gao, Yong; Xia, Chunguang; Zhang, Xiquan; Meng, Qingyi; Wu, Donghai; Zhao, Junling; Hu, Wenhui; Bioorganic and Medicinal Chemistry Letters; vol. 25; 14; (2015); p. 2744 – 2748;,
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Application of 149965-40-2, 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.

(2-Chloro-5-(4,4,5,5-tetramethyl-1 ,3,2-dioxaborolan-2-yl)phenyl)methanol A suspension of (5-bromo-2-chlorophenyl)methanol (2.08 g, 9.39 mmol), potassium acetate (3.50 g, 35.7 mmol) and 4,4,4′,4′,5,5,5′,5′-octamethyl-2,2′-bi(1 ,3,2-dioxaborolane) (2.77 g, 10.89 mmol) degassed with a stream of nitrogen for ~10 mins after which time bis(triphenylphosphine)palladium(ll) chloride (0.396 g, 0.563 mmol) was added and the mixture was heated to 120 C for 30 minutes in a microwave at high power. After this time, the suspension was cooled and filtered through celite using ethyl acetate to wash the celite. The dark colored solution was washed with water (4x gently), brine (1x), dried over magnesium sulfate, filtered and concentrated under reduced pressure. The crude product was purified by flash chromatography to give the title compound (2.76g, 68.9%), LC-MS m/z 267.7 (M+H)+, 1 .0 minutes (ret time), 63 % purity.

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 149965-40-2, (5-Bromo-2-chlorophenyl)methanol.

Reference:
Patent; GLAXOSMITHKLINE INTELLECTUAL PROPERTY DEVELOPMENT LIMITED; ASTEX THERAPEUTICS LIMITED; KERNS, Jeffrey K.; LI, Tindy; YAN, Hongxing; HEIGHTMAN, Thomas Daniel; WOOLFORD, Alison Jo-Anne; GRIFFITHS-JONES, Charlotte Mary; WILLEMS, Hendrika Maria Gerarda; (109 pag.)WO2016/203400; (2016); 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. 149965-40-2, name is (5-Bromo-2-chlorophenyl)methanol, the common compound, a new synthetic route is introduced below. Formula: C7H6BrClO

(2) To a solution of 2.08 g (9.39 mol) of 5-bromo-2-chlorobenzylalcohol in 30 ml of dry diethyl ether was added dropwise 1.27 g (4.23 mmol) of phosphorous tribromide with ice-cooling. The mixture was stirred with ice-cooling for 3 hours and stirred at room temperature for 1.5 hours. To the reaction solution were added ice water and then tert-butyl methyl ether. The mixture was stirred for 30 minutes and separated. The organic layer was washed successively with an about 5% aqueous solution of sodium bicarbonate and water, then dried and concentrated. The solid residue (1.99 g) was subjected to silica gel column chromatography (eluted with n-hexane) to obtain 1.88 g of 5-bromo-2-chlorobenzylbromide as flocculent crystals.

The synthetic route of 149965-40-2 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Sumitomo Chemical Company, Limited; US6489487; (2002); B1;,
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Related Products of 149965-40-2, 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. 149965-40-2, name is (5-Bromo-2-chlorophenyl)methanol, molecular formula is C7H6BrClO, 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.

60 g PCC and 60 g silica gel powder were added to a round bottom flask; after mixing, 500 mL dichloromethane was added; cooled to 0 C., and 45 g of compound 1-1 in dichloromethane (300 mL) was added dropwise with stirring; maintaining 0 C.The reaction was monitored by TLC; after the reaction was completed, the reaction solution was spin-dried; 38 g of Compound 1-2 was isolated by column separation, and the yield in two steps was 90%.

According to the analysis of related databases, 149965-40-2, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Guangzhou Medical University; Hu Wenhui; Yu Xiyong; Zhao Xin; Wu Bo; (25 pag.)CN107556276; (2018); A;,
Alcohol – Wikipedia,
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Adding a certain compound to certain chemical reactions, such as: 149965-40-2, (5-Bromo-2-chlorophenyl)methanol, 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, SDS of cas: 149965-40-2, blongs to alcohols-buliding-blocks compound. SDS of cas: 149965-40-2

To a solution of 5-bromo-2-chlorobenzyl alcohol (3.00 g, 13.6 mmol) in DMF (10 ml) was added under a nitrogen atmosphere imidazole (2.89 g, 42.0 mmol). After cooling to 0 C. tert-butyldimethylchlorsilan (3.37 g, 22.3 mmol) was added and the reaction mixture was stirred for 18 h in a thawing ice bath. It was diluted with water (20 ml) and extracted with EtOAc (20 ml). The aqueous layer was extracted with ethyl acetate (20 ml) and the organic layers were washed with water (20 ml) and brine (20 ml) and were dried over sodium sulfate. Concentration and purification by chromatography (SiO2, heptane:ethyl acetate=100:0 to 80:20) afforded the title compound (4.35 g, 96%) as a colorless liquid. MS m/e: 279.0 [M-tBu]+.

The synthetic route of 149965-40-2 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Knust, Henner; Nettekoven, Matthias; Pinard, Emmanuel; Roche, Olivier; Rogers-Evans, Mark; US2009/312314; (2009); A1;,
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Electric Literature of 149965-40-2, 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. 149965-40-2, name is (5-Bromo-2-chlorophenyl)methanol. A new synthetic method of this compound is introduced below.

Step 2: ((5 -bromo-2-chlorobenzyl)oxy)(tert-butyl)dimethylsilane A solution of (5 -bromo-2- chlorophenyl)methanol (3.80 g, 17.2 mmol), tert-butylchlorodimethylsilane (2.84 g, 18.9 mmol), and 1H-imidazole (2.34 g, 34.3 mmol) in DMF (30 mL) was maintained with stirring at 10 C for 16 hours. Then the reaction mixture was poured into diethyl ether (10 mL) and washed three times with 5% LiC1 (15 mL). The organic layer was separated, dried over sodium sulfate, filtered, taken toa residue under reduced pressure. The residue was purified by column chromatography (Si02, petroleum ether= 100%) to give the title compound.

At the same time, in my other blogs, there are other synthetic methods of this type of compound,149965-40-2, (5-Bromo-2-chlorophenyl)methanol, and friends who are interested can also refer to it.

Reference:
Patent; MERCK SHARP & DOHME CORP.; CHEN, Helen; COLLETTI, Steven, L.; DEMONG, Duane; GUO, Yan; MILLER, Michael; NAIR, Anilkumar; PLUMMER, Christopher, W.; XIAO, Dong; YANG, De-Yi; (289 pag.)WO2016/22742; (2016); A1;,
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