Tag: M.W=100-200

A common compound: 6338-55-2, name is 2-(2-(2-Aminoethoxy)ethoxy)ethanol,molecular formula is C6H15NO3, it can change the direction of chemical reaction, and react with certain compounds to generate new functional products. A new synthetic method of this compound is introduced below., 6338-55-2

General procedure: The desired aminoalcohol (17 mmol, 2-(2-aminoethoxy)ethanol or 2-[2-(2-aminoethoxy)ethoxy]ethanol) was dissolved in CH3OH (10 mL) and TEA (5.45 mL, 39.2 mmol) was added. To this solution, stirred at room temperature, was added dropwise a solution of benzyloxycarbonyl chloride (ZCl, 3.2 g, 18.77 mmol) in CH3OH (5 mL). After the addition was complete the reaction mixture was stirred at room temperature for 20 h, protected from moisture with a CaCl2 drying tube. The solvent was then evaporated and the crude was dissolved in CH2Cl2 (150 mL) and washed first with a 5% aqueous solution of KHSO4 (2 ¡Á 50 mL) and then with water (2 ¡Á 50 mL). The evaporation of the dried solvent (Na2SO4) afforded the product as a clear oil pure enough to be used in the following steps.

With the rapid development of chemical substances, we look forward to future research findings about 6338-55-2.

Reference:
Article; Sissi, Claudia; Dovigo, Luca; Greco, Maria Laura; Ciancetta, Antonella; Moro, Stefano; Trzci?ski, Jakub W.; Mancin, Fabrizio; Rossi, Paola; Spalluto, Giampiero; Tecilla, Paolo; Tetrahedron; vol. 73; 21; (2017); p. 3014 – 3024;,
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702-98-7, 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. 702-98-7, name is 2-Methyladamantan-2-ol. This compound has unique chemical properties. The synthetic route is as follows.

An autoclave was charged with 2,3-dibromo-1,1,1-trifluoropropane (0.2559 g, 1.0 mmol), 2-methyl-2-adamantanol (0.249 g, 1.5 mmol), triethylamine (0.202 g, 2.0 mmol), lithium carbonate(0.0369 g, 0.5 mmol), dichlorobis (triphenylphosphine) palladium(II) (0.0070 g, 0.01 mmol), and tetrahydrofuran (2.0 mL), which were then stirred at 100C for 15 hours after introducing carbon monoxide (1.0 MPaG). After the end of the reaction, the autoclave was cooled, ventilated, and added with benzotrifluoride as an internal standard substance, followed by stirring and leaving still for a while to let a salt precipitate. Quantification using a 19F-NMR integration value revealed that 2-trifluoromethyl acrylic acid 2-methyl-2-adamantyl ester was obtained with a yield of 91.1% on the basis of 2,3-dibromo-1,1,1-trifluoropropane.

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 702-98-7, 2-Methyladamantan-2-ol.

Reference:
Patent; Tosoh F-Tech, Inc.; SAGAMI CHEMICAL RESEARCH CENTER; EP1637514; (2006); A1;,
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100-37-8, 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. 100-37-8, name is 2-(Diethylamino)ethanol. This compound has unique chemical properties. The synthetic route is as follows.

j0044] Example 2: a bis (2-diethylaminoethyl) ether synthesizing method using N,N-diethylethanolamine, diethylamine and ethyne as raw materials (original raw materials) is performed by the following steps in proper order:10045] step 1: synthesizing:10046] wherein at a room temperature, 117 g N,N-diethylethanolamine (1.0 mol), 268 g diisobutyl ether (as a solvent) and 3.6 g sodium ethoxide are added in a high-pressure reaction dave with a mixing and temperature-measuring device; the dave cover is put on and leakage is inspected; then 6.5 g ethyne (0.25 mol) and 55.0 g diethylamine (0.75 mol) are forced into the dave in proper order; afier feeding, a temperature is raised to 50 C., and kept on for 7 h before completing the reaction;10047] afier reaction, the dave is opened and a filtrate is obtained by filtering the reaction mixture; and step 2:10048] distilling the filtrate obtained at 60 C. and atmospheric pressure for half an hour for the unreacted diethylamine to come out; then proceeding to rectification at reduced pressure intermittently; at a pressure of 1 kPa, collecting the previous fractions (all fractions before 91 C.)- unreacted N,N-diethylethanolamine and solvent; then collecting the fractions at 9 1-93 C. and obtaining bis (2-diethylaminoethyl) etherweighing 51.5 g; wherein a product purity is 99.1%; by taking the consumed ethyne as reference, a yield rate is 95.3%.

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 100-37-8, 2-(Diethylamino)ethanol.

Reference:
Patent; SICHUAN ZHIJIANG ADVANCED MATERIALS CO., LTD.; Zhang, Chao; Zhang, Hua; Ye, Xiaoming; Zhang, Qi; Ye, Chuanwei; US2015/291506; (2015); 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.623-04-1, name is (4-Aminophenyl)methanol, molecular formula is C7H9NO, molecular weight is 123.1525, as common compound, the synthetic route is as follows.623-04-1

To a solution of (4-Aminophenyl)methanol (1.50 g, 12.18 mmol) in CH2CI2 (20 ml.) was added TBDMSCI (1.84 g, 12.18 mmol) and imidazole (0.91 g, 13.40 mmol). After stirring for 1 h at room temperature, the solution was diluted with brine, and extracted with E-tOAc. The organic extract was dried (Na2SO4), filtered, and evaporated. The residue was purified by silica gel column chromatography with gradient of EtOAc (25-100%) in Hexane to afford 67 (2.76 g, 96%) as a light yellow oil. LRMS (ESI): (calc.) 237.4; (found) 238.2 (MH) +

Statistics shows that 623-04-1 is playing an increasingly important role. we look forward to future research findings about (4-Aminophenyl)methanol.

Reference:
Patent; METHYLGENE INC.; WO2006/102760; (2006); A1;,
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Adding some certain compound to certain chemical reactions, such as: 56239-26-0, name is cis-4-Aminocyclohexanol hydrochloride, 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 56239-26-0. 56239-26-0

Cis-4-Aminocyclohexanol hydrochloride (Aldrich cat740365: 8.3 mg, 0.055 mmol) was added to a solution of 5-(3-phenylpiperidin-1-yl)pyridine-2-carbaldehyde (10 mg, 0.04 mmol) in N,N-dimethylformamide, followed by acetic acid (0.11 mmol). After 5 min, sodium cyanoborohydride (6.9 mg, 0.11 mmol) was added. The reaction mixture was stirred at room temperature overnight. The crude reaction mixture was purified by prep LCMS (pH 2, acetonitrile/water+TFA) to give the desired product as its TFA salt. LC-MS calculated for C23H32N3O (M+H)+: m/z 366.3; found: 366.3.

Chemical properties determine the actual use. Each compound has specific chemical properties and uses. We look forward to more synthetic routes in the future to expand reaction routes of 56239-26-0.

Reference:
Patent; Incyte Corporation; Wu, Liangxing; Qian, Ding-Quan; Lu, Liang; Lajkiewicz, Neil; Konkol, Leah C.; Li, Zhenwu; Zhang, Fenglei; Li, Jingwei; Wang, Haisheng; Xu, Meizhong; Xiao, Kaijiong; Yao, Wenqing; (101 pag.)US2018/177784; (2018); A1;,
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702-82-9, 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. 702-82-9, name is 3-Aminoadamantan-1-ol, molecular formula is C10H17NO, 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: A mixture of 0.136 or 0.272 g (1 or 2 mmol) of 1-oxa-3,6-dithiacycloheptane (1) [3] in 5 mL of chloroform and 0.018 g (0.05 mmol) of SmCl3 ¡¤ 6 H2O was stirred for 30 min at room temperature under argon, and a solution of 1 mmol of the corresponding amine in 5 mL of ethanol was added dropwise. The mixture was stirred for 3 h at room temperature, treated with 2 mL of water, stirred for 30 min more, and extracted with chloroform (20 mL). The extract was evaporated, and the product (compound 2-17) was isolated from the residue by column chromatography on silica gel.

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. 702-82-9, 3-Aminoadamantan-1-ol, other downstream synthetic routes, hurry up and to see.

Reference:
Article; Rakhimova; Ismagilov; Khalilov; Zainullin; Ibragimov; Dzhemilev; Russian Journal of Organic Chemistry; vol. 51; 7; (2015); p. 951 – 956; Zh. Org. Khim.; vol. 51; 7; (2015); p. 971 – 976,6;,
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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.39590-81-3, name is 1,1-Bis(Hydroxymethyl)cyclopropane, molecular formula is C5H10O2, molecular weight is 102.13, as common compound, the synthetic route is as follows.39590-81-3

5 g of cyclopropane-1,1-diyldimethanol are solubilized in 31 mL of pyridine. Cooling is performed down to 0-5 C., and then 10.3 mL of mesyl chloride are added dropwise, stirring is performed for 2 h. Add 40.46 mL of H2O+12.24 mL of concentrated HCl in order to precipitate the compound. The precipitate is filtered and dried in the oven. 10 g (yield=80%) of cyclopropane-1,1-diylbis(methylene)dimethanesulfonate are obtained as a white powder:

Statistics shows that 39590-81-3 is playing an increasingly important role. we look forward to future research findings about 1,1-Bis(Hydroxymethyl)cyclopropane.

Reference:
Patent; SANOFI; Arigon, Jerome; Brollo, Maurice; Clement, Jacques; Combet, Romain; Durand, Florence; El Ahmad, Youssef; Labrosse, Jean-Robert; Letallec, Jean-Philippe; Ronan, Baptiste; US2013/289031; (2013); A1;,
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456-47-3, 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. 456-47-3, name is 3-Fluorobenzyl alcohol, molecular formula is C7H7FO, 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: A 20-mL test-tube equipped with a magnetic stirring bar was charged with o-nitroaniline 1 (2.5 mmol, 1 equiv), alcohol 2 or 5 (3 mmol, 1.2equiv), Na2S¡¤nH2O (?60%, 130 mg, 1 mmol, 40 mol%) and FeCl3¡¤6H2O(7 mg, 0.025 mmol, 1 mol%). The resulting mixture was stirred for 24h under an argon atmosphere at the indicated temperature (see Schemes 2 and 3 and Table 2). After cooling to r.t., the mixture was purified in different ways. (i) For NH benzimidazole products, the mixture was washed with CH2Cl2 (3 ¡Á 2 mL) then dissolved in MeOH.The MeOH solution was filtered through a short pad of silica gel. The filtrate was concentrated in vacuo to afford the NH benzimidazole product. Further purification by column or recrystallization was carried out if necessary. (ii) For N-methyl-2-phenylbenzimidazole 3ha and quinoxalines 5, the crude mixture was dissolved in a minimum volume of CH2Cl2 and purified by column chromatography (silica gel or alumina, heptane-EtOAc, EtOAc, EtOAc-MeOH, hexane-Et2O). We noted that some 13C NMR signals of NH-benzimidazoles are missing or difficult to observe.

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. 456-47-3, 3-Fluorobenzyl alcohol, other downstream synthetic routes, hurry up and to see.

Reference:
Article; Nguyen, Thanh Binh; Ermolenko, Ludmila; Al-Mourabit, Ali; Synthesis; vol. 47; 12; (2015); p. 1741 – 1748;,
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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.3973-18-0, name is Propynol ethoxylate, molecular formula is C5H8O2, molecular weight is 100.1158, as common compound, the synthetic route is as follows.3973-18-0

General procedure: To a 0.30mL of a solution of azide 14 (23mM in tBuOH-H2O (2: 1)) in an eppendorf, 0.10mL of a solution of the corresponding alkyne (a-s) (83mM in tBuOH) was added followed by 25muL of an aqueous solution of sodium ascorbate (30mM) and 25muL of an aqueous solution of CuSO4 (9.4mM). The final concentration of the azide 14 in each eppendorf was 15mM. The resulting mixtures were shaken at room temperature for 24h and monitored for completion by TLC and ESI-MS (see Supplementary data for mass spectra analysis). Then, the reactions were diluted with water to the desired concentration and placed in a 96-well microtiter plate in order to perform the enzymatic assays. In the preliminary screening of the resulting crude (pyrrolidin-2-yl)triazoles 14a-s, % of inhibition towards beta-glucosidase from almonds was determined at 10muM of the pyrrolidine-triazole on each well (assuming quantitative conversion in the click reaction).

Statistics shows that 3973-18-0 is playing an increasingly important role. we look forward to future research findings about Propynol ethoxylate.

Reference:
Article; Martinez-Bailen, Macarena; Carmona, Ana T.; Moreno-Clavijo, Elena; Robina, Inmaculada; Ide, Daisuke; Kato, Atsushi; Moreno-Vargas, Antonio J.; European Journal of Medicinal Chemistry; vol. 138; (2017); p. 532 – 542;,
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100-37-8, 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. 100-37-8, name is 2-(Diethylamino)ethanol. A new synthetic method of this compound is introduced below.

25 g of 4-cyano-4-(thiobenzylthio) pentanoic acid (89.6 mmol) were dissolved in 100 g of tetrahydrofurane anhydride. Under a nitrogen atmosphere, 15.726 g of 10-hydroxy benzotriazole (0.116 mol) were added thereto and stirred for 30 minutes. 22.72 g ethyldimethylaminocarboimide (0.116 mol) were added and stirred for 15 minutes, followed by the addition of 11.98 g of dimethylaminoethanol (0.134 mol) and stirring at room temperature for 6 hours. After completing the reaction, the resultant was extracted with water and diethyl ether and dried over magnesium sulfate. The organic solvent was vacuum distillated. It was purified with a column to obtain 21.95 g of 4-cyano-4-(thiobenzylthio)pentanoic dimethylamino ethyl ester (70% yield). 16.9 g of the obtained 4-cyano-4-(thiobenzylthio) pentanoic acid (48.4 mmol) were dissolved in 100 g of tetrahydrofurane anhydride. Under a nitrogen atmosphere, 8.496 g of 10-hydroxy benzotriazole (0.0629 mol) were added thereto, and stirred for 30 minutes. 12.26 g of ethyldimethylaminocarboimide (0.0629 mol) were added and stirred for 15 minutes, followed by addition of 11.47 g of diethylaminoethanol (0.0981 mol). The stirring was continued at room temperature for 12 hours. After completing the reaction, the resultant was extracted with water and diethyl ether, and dried over magnesium sulfate. The organic solvent was distillated in a vacuum, then purified with a column to obtain 12.8 g of 4-cyano-4-(thiobenzylthio)pentanoic diethylamino ethyl ester (70% yield). 12.7 g of the obtained 4-cyano-4-(thiobenzylthio) pentanoic acid (36.39 mmol) were dissolved in 60 g tetrahydrofurane anhydride. Under a nitrogen atmosphere, 6.36 g of 10-hydroxy benzotriazole (0.0473 mol) were added thereto and stirred for 30 minutes. 9.22 g of ethyldimethylaminocarboimide (0.0473 mol) were added and stirred for. 15 minutes, followed by the addition of 7.9 g of diisopropylene diamine (0.0546213 mol) and stirring at room temperature for an additional 12 hours. After completing the reaction, the resultant was extracted with water and diethyl ether, and dried over magnesium sulfate. The organic solvent was distillated under vacuum, and purified with a column to obtain 10.35 g of 4-cyano-4-(thiobenzylthio)pentanoic diisopropyl amino ethyl ester (70% 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. 100-37-8, 2-(Diethylamino)ethanol, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; Kim, Hee-Jung; Kim, Dong-Ryul; US2004/138492; (2004); A1;,
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