Category: 52273-77-5

Reference of 52273-77-5 , The common heterocyclic compound, 52273-77-5, name is 2-(3-Aminophenyl)ethanol, molecular formula is C8H11NO, 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.

Example 4 A mixture of 9-chloro-3-methoxyacridine, (975 mg, 4 mmol), 3-aminophenethyl alcohol (549 mg, 4 ml) and methanesulfonic acid (0.32 ml, 5 mmol) in methanol (30 ml) is stirred under reflux for 2 hours. The mixture is concentrated in vacuo, and the residue is dissolved in methanol (10 ml). The solution is diluted with ether (150 ml). The precipitates are collected by filtration, washed with ether to give 9-[3′-(beta-hydroxyethyl)anilino]-3-methoxyacridine, as the methanesulfonate (1.15 g, 65%), mp 186-188 C. Microanalyses Calculated for C22 H20 N2 O2 –CH3 SO3 H: C, 2.71; H, 5.49; N, 6.36; S, 7.28%. Found: C, 62.79; H, 5.51; N, 6.14; S. 7.17%.

The synthetic route of 52273-77-5 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Sloan-Kettering Institute For Cancer Research; US5229395; (1993); A;,
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Application of 52273-77-5, 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.52273-77-5, name is 2-(3-Aminophenyl)ethanol, molecular formula is C8H11NO, molecular weight is 137.179, as common compound, the synthetic route is as follows.

Step 1. Preparation of 3-{2-[2-(4-tert-Butyl-phenyl)-thiazol-4-ylmethoxy]-ethyl}-phenyl amine To a solution of 0.027 g (1 mmol) of 95% sodium hydride and 0.5 drop of 15-crown-5 in 20 mL of THF was added dropwise a solution of 0.139 g (1 mmol) of 3-(2-hydroxy ethyl) phenyl amine at 0 C. After stirring for 0.5 hr 0.28 g (1.1 mmol) of 4-chloromethyl-2-(4-tert-butyl phenyl) thiazole was added in one portion. The mixture was stirred at room temperature for 5 hr. At the end of this time, the solution was concentrated and the residue washed with 10 ml of saturated ammonium chloride and extracted 2 times with 30 mL of ethyl acetate. The organic layers were combined, dried (MgSO4) and concentrated to recover an oil, which was purified by column chromatography on SiO2 with 30% ethyl acetate: hexane elution to provide 0.125 g of product as an oil, used in the next step without further purification. NMR (400 MHz, DMSO-d6) delta7.83 (d, J=8 Hz,2H, ArH), 7.50 (d, J=8 Hz, 2H,ArH), 7.45 (s, 1H, N=CH) 7.08 (t, J=8 Hz, 1H, H5), 6.63 (d, J=8 Hz, 1H,H4), 6.54 (s, 1H, H2), 6.51 (d, J=8 Hz, 1H, H6) 4.59 (s, 2H, OCH2), 3.71 (t, J=7 Hz, 2H, OCH2), 2.87 (t, J=7 Hz, 2H,ArCH2), 1.30 (s, 9H, t-bu)

Statistics shows that 52273-77-5 is playing an increasingly important role. we look forward to future research findings about 2-(3-Aminophenyl)ethanol.

Reference:
Patent; Wyeth; US2003/203941; (2003); A1;,
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Reference of 52273-77-5, 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 52273-77-5, name is 2-(3-Aminophenyl)ethanol. This compound has unique chemical properties. The synthetic route is as follows.

N- [3- (2-HYDROXYETHYL) PHENYL]-2, 4-DIMETHYL-1, 3-THIAZOLE-5-CARBOXAMIDE; 2- (3-Aminophenyl) ethanol (1.202 g, 8.76 MMOL) was added to a solution of 2, 4-dimethyl- 1, 3-thiazole-5-carboxylic acid (1.652 g, 10.51 MMOL), 1- (3-DIMETHYLAMINOPROPYL)-3- ethylcarbodiimide hydrochloride (2.015 g, 10.51 MMOL) and 1-hydroxybenzotriazole (1.420 g, 10.51 MMOL) in dry DMF (20 mL). The mixture was stirred for 14h then the DMF was removed under reduced pressure and the residue was partitioned between DCM and saturated aqueous sodium hydrogencarbonate solution. The organic layer was dried over magnesium sulfate and concentrated under reduced pressure. The crude compound was purified by flash chromatography on silica gel, eluting with ethyl acetate-cyclohexane (1: 1 to 1: 0) affording the title compound in 73% yield (1.772 g). MS; (ES) m/z: 277 [MH+]. C14H16N202S requires 276. 1H-NMR (300 MHz, D6-DMSO) S (ppm): 9.95 (s, 1H), 7.40-7. 50 (m, 2H), 7.19 (t, 1H), 6.92 (d, 1 H), 4.60 (t, 1 H), 5.57 (dd, 2H), 2.66 (t, 2H), 2.61 (s, 3H), 2.49 (s, 3H).

According to the analysis of related databases, 52273-77-5, the application of this compound in the production field has become more and more popular.

Reference:
Patent; GLAXO GROUP LIMITED; WO2005/14552; (2005); A1;,
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts