Downstream synthetic route of 3476-89-9

The synthetic route of 3476-89-9 has been constantly updated, and we look forward to future research findings.

3476-89-9, 1,2,3,4-Tetrahydroquinoxaline is a quinoxaline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: Bromine was added dropwise to a magnetically stirred refluxing solution of quinoxaline (1) or tetrahydroquinoxaline 15 or 19 in the relevant solvent. The resulting reaction mixture was heated at reflux temperature. The reaction was monitored by TLC or 1H NMR spectroscopy. After the desired time, the resulting reaction mixture was allowed to cool to room temperature and the solvent was removed under reduced pressure. The mixture was diluted with a saturated solution of sodium carbonate (10mL) and the mixture was extracted with ethyl acetate (2¡Á25mL). Combined organic layers were washed with water, dried over Na2SO4 and concentrated. The crude was purified appropriate method described in below., 3476-89-9

The synthetic route of 3476-89-9 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Ucar, Sefa; E?siz, Selcuk; Da?tan, Arif; Tetrahedron; vol. 73; 12; (2017); p. 1618 – 1632;,
Quinoxaline – Wikipedia
Quinoxaline | C8H6N2 | ChemSpider

Simple exploration of 3476-89-9

The synthetic route of 3476-89-9 has been constantly updated, and we look forward to future research findings.

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.3476-89-9,1,2,3,4-Tetrahydroquinoxaline,as a common compound, the synthetic route is as follows.

Example 4: Synthesis of 2- (3, 4-DIHYDRO-2H-QUINOXALIN-1-YLMETHYL)-1, 1, 1-TRIFLUORO-4- (5- fluoro-2-methoxyphenyl)-4-methylpentan-2-ol A solution of 2-[2-(5-FLUORO-2-METHOXYPHENYL)-2-METHYLPROPYL]-2-TRIFLUOROMETHYLOXIRANE (see Example 1) (54.4 mg) and tetrahydroquinoxaline (124. 8 mg) in DMF (0.6 mL) was heated at 100C for 6 hours. The resulting mixture was diluted with diethyl ether, washed with water and brine, dried over sodium sulfate, filtered, and concentrated in vacuo. The residue was purified by preparative TLC (eluted with 25% diethyl ether-benzene) to give the title compound as a clear oil (31.2 mg)., 3476-89-9

The synthetic route of 3476-89-9 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; BOEHRINGER INGELHEIM PHARMACEUTICALS, INC.; WO2004/63163; (2004); A1;,
Quinoxaline – Wikipedia
Quinoxaline | C8H6N2 | ChemSpider

Brief introduction of 3476-89-9

The synthetic route of 3476-89-9 has been constantly updated, and we look forward to future research findings.

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.3476-89-9,1,2,3,4-Tetrahydroquinoxaline,as a common compound, the synthetic route is as follows.

General procedure: Bromine was added dropwise to a magnetically stirred refluxing solution of quinoxaline (1) or tetrahydroquinoxaline 15 or 19 in the relevant solvent. The resulting reaction mixture was heated at reflux temperature. The reaction was monitored by TLC or 1H NMR spectroscopy. After the desired time, the resulting reaction mixture was allowed to cool to room temperature and the solvent was removed under reduced pressure. The mixture was diluted with a saturated solution of sodium carbonate (10mL) and the mixture was extracted with ethyl acetate (2¡Á25mL). Combined organic layers were washed with water, dried over Na2SO4 and concentrated. The crude was purified appropriate method described in below., 3476-89-9

The synthetic route of 3476-89-9 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Ucar, Sefa; E?siz, Selcuk; Da?tan, Arif; Tetrahedron; vol. 73; 12; (2017); p. 1618 – 1632;,
Quinoxaline – Wikipedia
Quinoxaline | C8H6N2 | ChemSpider

Analyzing the synthesis route of 3476-89-9

3476-89-9, 3476-89-9 1,2,3,4-Tetrahydroquinoxaline 77028, aquinoxaline compound, is more and more widely used in various fields.

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.3476-89-9,1,2,3,4-Tetrahydroquinoxaline,as a common compound, the synthetic route is as follows.

General procedure: Bromine was added dropwise to a magnetically stirred refluxing solution of quinoxaline (1) or tetrahydroquinoxaline 15 or 19 in the relevant solvent. The resulting reaction mixture was heated at reflux temperature. The reaction was monitored by TLC or 1H NMR spectroscopy. After the desired time, the resulting reaction mixture was allowed to cool to room temperature and the solvent was removed under reduced pressure. The mixture was diluted with a saturated solution of sodium carbonate (10mL) and the mixture was extracted with ethyl acetate (2¡Á25mL). Combined organic layers were washed with water, dried over Na2SO4 and concentrated. The crude was purified appropriate method described in below.

3476-89-9, 3476-89-9 1,2,3,4-Tetrahydroquinoxaline 77028, aquinoxaline compound, is more and more widely used in various fields.

Reference£º
Article; Ucar, Sefa; E?siz, Selcuk; Da?tan, Arif; Tetrahedron; vol. 73; 12; (2017); p. 1618 – 1632;,
Quinoxaline – Wikipedia
Quinoxaline | C8H6N2 | ChemSpider

Brief introduction of 3476-89-9

As the paragraph descriping shows that 3476-89-9 is playing an increasingly important role.

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.3476-89-9,1,2,3,4-Tetrahydroquinoxaline,as a common compound, the synthetic route is as follows.

24d. 1-Methyl-4-(2-nitro-phenyl)-1,2,3,4-tetrahydro-quinoxaline To a solution of 1,2,3,4-tetrahydroquinoxaline (60 mg, 0.403 mmol) in DMSO (2 mL) was add potassium tert-butoxide (91 mg, 0.81 mmol), followed by 2-fluoro-nitrobenzene (57 mg, 0.403 mmol). The reaction mixture was stirred at 80 C. for 16 h. The desired product was isolated via silica gel chromatography using 0% to 50% EtOAc in hexane as eluding solvent to afford 24d (49 mg, 45%) as radish foam. LC-MS ESI m/z 270 [M+H]+., 3476-89-9

As the paragraph descriping shows that 3476-89-9 is playing an increasingly important role.

Reference£º
Patent; Tuerdi, Huji; Chao, Hannguang J.; Qiao, Jennifer X.; Wang, Tammy C.; Gungor, Timur; US2005/261244; (2005); A1;,
Quinoxaline – Wikipedia
Quinoxaline | C8H6N2 | ChemSpider

Analyzing the synthesis route of 3476-89-9

As the paragraph descriping shows that 3476-89-9 is playing an increasingly important role.

3476-89-9, 1,2,3,4-Tetrahydroquinoxaline is a quinoxaline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

A solution of 5-(3,4,5-trimethoxyphenyl)penta-(2E,4E)-dienoyl chloride in methylene chloride (3 ml) was added dropwise to a solution of 45 mg (0.34 mmol) of 1,2,3,4-tetrahydroquinoxaline(1) in pyridine (0.5 ml) over about 5 minutes with stirring in an ice bath.. After completion of the addition, the mixture was stirred for 1 hour and water was added to conduct extraction with chloroform.. An organic layer was dried over anhydrous sodium sulfate and then concentrated under reduced pressure.. The resultant crude oil (254 mg) was purified by column chromatography on alumina and column chromatography on silica gel to obtain 91 mg (yield: 43%) of crude crystals of the title compound.. The crude crystals were recrystallized from chloroform-ether to obtain pale yellow fien needles. Melting point: 183-185 C. 1H-NMR (DMSO-d6, 120 C.) delta: 3.71(s,6H), 3.80(s,12H), 3.97(s,4H), 6.52(d,J=14.9 Hz,2H), 6.80(s,4H), 6.85-7.00(m,4H), 7.21-7.28(m,2H), 7.36(ddd,J=14.9,9.0,1.1 Hz,2H), 7.38-7.45(m,2H)., 3476-89-9

As the paragraph descriping shows that 3476-89-9 is playing an increasingly important role.

Reference£º
Patent; Kowa Co., Ltd.; US6340682; (2002); B1;,
Quinoxaline – Wikipedia
Quinoxaline | C8H6N2 | ChemSpider

Some tips on 3476-89-9

3476-89-9 1,2,3,4-Tetrahydroquinoxaline 77028, aquinoxaline compound, is more and more widely used in various.

3476-89-9, 1,2,3,4-Tetrahydroquinoxaline is a quinoxaline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

To a stirred solution of compound 14-1 (270 mg, 2 mmol) in THF (10 mL) was added LiAlH4 (0411) (228 mg, 6 mmol) at 0 C. The resulting mixture was stirred at 0 C for 30 min then stirred at room temperature overnight. The reaction was quenched with 0.25 mL H20, 0.25 mL 5N NaOH and 1.25 mL H20. The participate was filtered off, and the filtrate was extracted with EtOAc (3 x 20 mL). The organic layers were separated, washed with brine, dried over sodium sulfate, and concentrated under vacuum. The crude product was purified by flash chromatography (0 – 60% EtOAc/hexane) to obtain as light yellow solid (90 mg, 34%). To a stirred solution of the intermediate afforded in last step (90 mg, 0.67 mmol) in THF was added Boc20 (146 mg, 0.67 mmol) and aqueous solution NaOH (IN, 0.67 mL) at 0 C. Then the resulting mixture was stirred at room temperature overnight. The reaction was quenched with water, extracted with EtOAc (3 x 10 mL). The organic layers were separated, washed with brine, dried over sodium sulfate, and concentrated under vacuum. The crude product was purified by flash chromatography (0 – 60% EtOAc/hexanes) to obtain as light yellow oil (90 mg, 57%). 1H NMR (400 MHz, CDC13) delta 7.49 (d, / = 7.7 Hz, 1H), 6.89 (td, / = 8.0, 1.4 Hz, 1H), 6.69 – 6.60 (m, 1H), 6.55 (dd, / = 8.0, 1.3 Hz, 1H), 3.94 (s, 1H), 3.83 – 3.69 (m, 2H), 3.47 – 3.34 (m, 2H), 1.52 (s, 9H).

3476-89-9 1,2,3,4-Tetrahydroquinoxaline 77028, aquinoxaline compound, is more and more widely used in various.

Reference£º
Patent; THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS; KOZIKOWSKI, Alan; SHEN, Sida; BERGMAN, Joel; (100 pag.)WO2017/142883; (2017); A1;,
Quinoxaline – Wikipedia
Quinoxaline | C8H6N2 | ChemSpider