Tag: M.W=100-200

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. 115-70-8, name is 2-Amino-2-ethylpropane-1,3-diol. A new synthetic method of this compound is introduced below., COA of Formula: C5H13NO2

(19-1) Synthesis of [1,1-bis(hydroxymethyl)propyl]carbamic acid t-butyl ester (compound 19-1) To a solution of 2-amino-2-ethyl-1,3-propanediol (22.0 g) in methanol (500 ml) and N,N-diisopropylethylamine (64.3 ml) was added di-t-butyl dicarbonate (60.5 g) under ice-cooling, and the mixture was stirred for 40 min under ice-cooling and further at room temperature for 16 hr. 1M aqueous sodium hydroxide solution (184 ml) was added to the reaction mixture under ice-cooling and the mixture was stirred for 40 min. Methanol was removed under reduced pressure. Water was added and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure to give the object product (41.0 g) as a colorless oil. 1H-NMR(CDCl3)delta(ppm): 0.90(3H, t, J=7.5Hz), 1.45(9H, s), 1.59(2H, q, J=7.5Hz), 3.45(2H, brs), 3.60(2H, dd, J=6.9, 11.6Hz), 3.84(2H, dd, J=4.8, 11.6Hz), 4.89(1H, brs).

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, 115-70-8, 2-Amino-2-ethylpropane-1,3-diol.

Reference:
Patent; Mitsubishi Tanabe Pharma Corporation; EP1961734; (2008); A1;,
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Synthetic Route of 140373-17-7, 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 140373-17-7, name is 2-Amino-2-(4-fluorophenyl)ethanol. This compound has unique chemical properties. The synthetic route is as follows.

A solution of 4,6-dichloropyrimidine (240 mg, 1.61 mmol) and 2-((6-chloropyrimidin-4-yl)amino)-2-(4-fluorophenyl)ethan-1-ol (250.00 mg, 1.61 mmol) in isopropanol (3 mL) was added DIPEA (0.84 mL, 4.83 mmol). The solution was stirred for 5 h at 50 C. H2O (50 mL) was added to the cooled solution and extracted with 10% IPA/DCM (3×50 mL). The combined organic extracts were dried over anhydrous Na2SO4 and concentrated in vacuo to afford 2-((6-chloropyrimidin-4-yl)amino)-2-(4-fluorophenyl)ethan-1-ol compound 18 (365 mg, 85%) as thick yellow liquid. MS (ESI): Calcd. for C12H11ClFN3O: 267, found 268 (MH+).

According to the analysis of related databases, 140373-17-7, the application of this compound in the production field has become more and more popular.

Reference:
Patent; NantBio, Inc.; Tao, Chunlin; Wang, Qinwei; Asad, Sharif; Weingarten, Paul; Ci, Sherry; US2018/346450; (2018); A1;,
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Adding a certain compound to certain chemical reactions, such as: 26021-57-8, 3,4-Dihydro-2H-benzo[b][1,4]oxazin-6-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, 26021-57-8, blongs to alcohols-buliding-blocks compound. name: 3,4-Dihydro-2H-benzo[b][1,4]oxazin-6-ol

Compound 54 (36 mg, 0.24 mmol) was dissolved in a solution of z-PrOFl/FhO (9/1, 1 mL) at 80 C for 30 min. A suspended solution of 35 (52 mg, 0.25 mmol) and HCIO4 (70%, 25 pL) in 90% z-PrOH (2 mL) was added in 4 portions over 1 h. The resulting solution was stirred overnight. After which, the dark blue solution was evaporated under reduced pressure, and the residue was purified on a Biotage Isolera Flash System using SNAP Ultra cartridge with a mobile phase of CHCh and MeOH containing 0.5% formic acid (gradient, 2-15% of MeOH in CHCh). The fractions containing product were pooled and evaporated, affording LGW-03-37 (27 mg, 32%) as a dark blue solid.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,26021-57-8, its application will become more common.

Reference:
Patent; OREGON HEALTH & SCIENCE UNIVERSITY; GIBBS, Summer L.; WANG, Lei G.; BARTH, Connor W.; (159 pag.)WO2020/23911; (2020); A2;,
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Related Products of 30379-58-9, 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. 30379-58-9, name is Benzyl 2-hydroxyacetate, molecular formula is C9H10O3, 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: The benzyl glycolate or thiobenzyl glycolate (1.5 equivalent) was added to the stirred suspension of peracetobromo-alpha-D-glucose, mannose, galactose (1 equivalent) and indium tribromide (10-15 mol%) in anhydrous dichloromethane (2 mL) at room temperature for an hour. The progress of reaction was monitored with thin layer chromatography. After the completion of the reaction, the reaction mixture was diluted with water and quenched with 10% aqueous acidic acid solution (1 mL). The organic layer washed with water and brine, the solvent was evaporated under reduced pressure and the crude product was purified by flash column chromatography on silica gel (90% ethyl acetate/hexanes). The corresponding beta-carboxymethyl glucosides (beta-CMGL) were afforded in good yield with high anomeric selectivity.

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 30379-58-9, Benzyl 2-hydroxyacetate.

Reference:
Article; Chandra, Sunena; Yadav, Ram N.; Paniagua, Armando; Banik, Bimal K.; Tetrahedron Letters; vol. 57; 13; (2016); p. 1425 – 1429;,
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Reference of 4728-12-5, 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 4728-12-5 as follows.

Example 492-Nitro-6-f4-(4-trifluoromethoxy-phenyl)-piperazin-1-ylmethyl1-6,7-dihvdro-5H-imidazof2,1- b1H .31oxazine (53)Pyridinium chlorochromate (10.54 g, 48.9 mmol) is dissolved in dichloromethane (100 ml) and celite (10 g) is added and the suspension is stirred for 30 minutes. A solution of (2,2- dimethyl-1 ,3-dioxan-5-y.)rpiethanol (5 g, 34.2 mmol) in dry dichloromethane is added drop wise to the reaction mixture and stirred for 2h at room temperature. The reaction mixture is diluted with diethyl ether (80 ml), stirred for 10 minutes, filtered through celite, washed several times with ether and the solvent is removed in vacuo to give crude 2,2-dimethyl- [1,3]dioxane-5-carbaldehyde, which is used in the next step without further purification.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,4728-12-5, its application will become more common.

Reference:
Patent; NOVARTIS AG; NOVARTIS PHARMA GmbH; US DEPARTMENT OF HEALTH & HUMAN SERVICES; WO2007/75872; (2007); A2;,
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

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. 153599-45-2, name is Methyl 3-(2-hydroxyethyl)benzoate, the common compound, a new synthetic route is introduced below. Application In Synthesis of Methyl 3-(2-hydroxyethyl)benzoate

3- (2-HYDROXYETHYL)- benzoic acid methyl ester (50 mg, 0.28 mmol) was dissolved in methanol (1 ml). 1N NaOH aqueous solution (1 ml) was added therein. The reaction mixture was stirred at room temperature for 1 hour to give 43 mg (yield: 95%, white solid) of the target compound. 1H NMR (400MHZ, CDC13) ; 52. 32 (br, 1H), 2.89 (t, J=6. 4Hz, 2H), 3.85 (t, J=6. 4Hz, 2H), 7.36 (t, J=7. 6Hz, 1H), 7.42 (D, J=5. 6Hz, 1H), 7.88 (d, J=8. 8Hz, 1H), 7.89 (s, 1H)

The synthetic route of 153599-45-2 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; JE IL PHARMACEUTICAL CO., LTD.; WO2004/113281; (2004); A1;,
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Application of 180205-28-1 ,Some common heterocyclic compound, 180205-28-1, molecular formula is C5H11NO, 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.

Part C To a solution of 1-(aminomethyl)cyclobutanol (62.5 mmol) in dichloromethane (312 mL) was added triethylamine (8.71 mL, 62.5 mmol) and 4-chloro-3-nitroquinoline (13.04 g, 62.5 mmol). More triethylamine (3 mL) was added almost immediately. The reaction was stirred under N2 for 10 days at room temperature, then was diluted with dichloromethane and washed with 1 M aqueous NaOH. A solid formed and was isolated by filtration. The organic layer was washed with water and brine, dried over Na2SO4, filtered, and concentrated under reduced pressure to yield a solid that was crystallized from 2-propanol. The resulting crystals were combined with the solid that was isolated from the extraction and the mixture was triturated with hot 2-propanol. The solid was isolated by filtration, washed with diethyl ether, and air dried to yield 12.83 g of 1-{[(3-nitroquinolin-4-yl)amino]methyl}cyclobutanol as yellow crystals.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,180205-28-1, its application will become more common.

Reference:
Patent; Radmer, Matthew R.; Moser, William H.; Moseman, Joan T.; Dellaria, Joseph F.; US2007/155767; (2007); A1;,
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Synthetic Route of 2807-30-9, Adding some certain compound to certain chemical reactions, such as: 2807-30-9, name is 2-Propoxyethanol,molecular formula is C5H12O2, 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 2807-30-9.

Compound 172: 2-((R)-1-[1,4]Dioxan-2-ylmethoxy)-9-(2-propoxy-ethoxy)-6,7-dihydro-pyrimido[6,1-a]isoquinolin-4-one Intermediate 7 (0.25 g, 0.76 mmol, 1 eq.), 2-Propoxy-ethanol (105 muL, 0.91 mmol, 1.2 eq.) and PPh3 (238 mg, 0.91 mmol, 1.2 eq.) were suspended in 1,4-dioxane (10 mL) and the mixture was degassed with N2. DIAD (0.180 mL, 0.91 mmol, 1.2 eq.) was added and the reaction was stirred at RT overnight. 0.3 eq. of DIAD and PPh3 were added, and the reaction mixture was stirred at room temperature for an extra 24 h. Reaction mixture was diluted with brine, extracted with EtOAc, dried over MgSO4 and concentrated. Crude product was purified on silicagel column to give compound 172.

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. 2807-30-9, 2-Propoxyethanol, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; GALAPAGOS NV; LABEGUERE, Frederic Gilbert; NEWSOME, Gregory John Robert; ALVEY, Luke Jonathan; SANIERE, Laurent Raymond Maurice; FLETCHER, Stephen Robert; US2013/165437; (2013); A1;,
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Synthetic Route of 929-06-6, 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 929-06-6, name is 2-(2-Aminoethoxy)ethanol. This compound has unique chemical properties. The synthetic route is as follows.

To an ice-cold solution of 2-(2-aminoethoxyethanol) (10 g, 95.23 mmol) indichloromethane (500 mL) was added triethylamine (19.23 g, 190.47 mmol), followed by Boc-anhydride (22.62 g, 104.76 mmol) dropwise over fifteen minutes at 0 C. The reaction mixture was allowed to warm to rt and stirred for 18 h while monitoring by TLC.The solvent was removed under reduced pressure and the residue was taken up in ethyl acetate (400 mL) and washed with saturated ammonium chloride solution (2 x 250 mL).The organic layer was dried over anhydrous sodium sulphate and concentrated to give tert-butyl (2-(2-hydroxy)ethoxy)ethylcarbamate (10.9 g, 55.8%) as a colorless liquid. 1HNMR (400 MHz, DMSO-i/6) delta ppm 6.76 (1H, s), 4.56 (1H, t, J=5.2 Hz), 3.50-3.46 (2H, m), 3.41-3.36 (4H, m), 3.10-3.05 (2H, m), 1.38 (9H, s).

According to the analysis of related databases, 929-06-6, the application of this compound in the production field has become more and more popular.

Reference:
Patent; BRISTOL-MYERS SQUIBB COMPANY; BOY, Kenneth M.; GUERNON, Jason M.; MACOR, John E.; THOMPSON III, Lorin A.; WU, Yong-Jin; ZHANG, Yunhui; WO2012/9309; (2012); A1;,
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

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. 111-46-6, name is 2,2′-Oxybis(ethan-1-ol), the common compound, a new synthetic route is introduced below. Recommanded Product: 111-46-6

1.122 g of tBuOK (potassium tert-butoxide) was dissolved in 6.5 ml of dry THF (tetrahydrofuran)2.12g of diethylene glycol was added under the protection of ice-water outer bath under argon, the reaction was stirred for 30 minutes, then 1.18g of bromopropyne was added dropwise,The reaction was complete after dropping 1 hour ice water bath, the reaction was carried out at room temperature for 12 hours, the reaction was stopped after diatomaceous earth filter layer, the filtrate evaporated to give a yellow oil, 300-400 mesh silica gel medium pressure separation,The mobile phase of petroleum ether: ethyl acetate = 4: 1, the product fractions were collected and evaporated to give the product 0.976g pale yellow oily product, yield 72.8%.

The synthetic route of 111-46-6 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Beijing Nerve Surgical Department Institute; Liu Qian; Zhang Yazhuo; Yang Xiaoxiao; CN106366075; (2017); A;,
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts