Category: isoquinoline

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.63927-23-1,5-Bromo-8-nitroisoquinoline,as a common compound, the synthetic route is as follows.

63927-23-1, 8 -Amino iso quino line 5-Bromo-8-mtroisoquinoline (1.00 g, 3.95 mmol) in MeOH (70 mL) was hydrogenated at ambient temperature and pressure over palladium on active carbon (10% Pd, 200 mg) for 18 h. The mixture was filtered through Celite and concentrated.The residue was purified by chromatography (EtOAc :heptane) to give the title compound (100 mg, 18%) as a green-brown solid. 1H NMR (DMSO-de, 400 MHz) delta 9.43 (s, IH), 8.32 (d, IH), 7.54 (d, IH)5 7.40 (dd, IH), 6.99 (d, IH), 6.72 (d, IH), 6.22 (s, 2H).

As the paragraph descriping shows that 63927-23-1 is playing an increasingly important role.

Reference£º
Patent; BIOLIPOX AB; WO2006/32851; (2006); A1;,
Isoquinoline – Wikipedia
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1239463-43-4, 5-Bromo-6-fluoroisoquinoline is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

To a stirred solution of 5-bromo-6-fluoroisoquinoline (43.9 g, 194 mmol) in DCM (880 mL) acetyl chloride (14.49 mL, 204 mmol) was dropped at RT and the solution was stirred for 60 min. The solution was cooled to -78C (yellow suspension) and then a solution of tert-butyl((1 – methoxyviny)oxy)dimethylsilane (38.4 g, 204 mmol) in DCM (220 mL) was added in one portion. The resulting yellow solution was stirred at -78C for 1 and then allowed to warm to rt overnight. 2N aqueous HCl was added and the reaction mixture was stirred for 10 min. The organic layer was separated and washed with brine (2x). The combined organic layers were dried with sodium sulfate, filtered and the solvent was removed under reduced pressure. The residue was dissolved in diethyl ether, charcoal was added and the mixture was filtrated through a pad of celite. The solvent was evaporated and the crude product was dried under high vacuo overnight to yield the title compound (70.6 g) which was used without further purification. UPLC-MS: MS 342.2/344.2 (M+H*) ; UPLC rt 1.05 min., 1239463-43-4

The synthetic route of 1239463-43-4 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; NOVARTIS AG; BEHNKE, Dirk; CARCACHE, David; ERTL, Peter; KOLLER, Manuel; ORAIN, David; WO2014/30128; (2014); A1;,
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With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.1532-97-4,4-Bromoisoquinoline,as a common compound, the synthetic route is as follows.

A solution of n-butyllithium in n-hexane (1.58 M, 60.1 ml, Kanto Chemicals) was added with tetrahydrofuran (345 ml), and the mixture was sufficiently cooled on a dry ice-acetone bath. The mixture was added dropwise with a solution of 4-bromoisoquinoline (9.0 g, Tokyo Kasei Kogyo) in tetrahydrofuran (65 ml) over 1 hour so that the temperature of the reaction mixture should not exceed -65¡ã C. The mixture was stirred at the same temperature for 30 minutes, and then added dropwise with a solution of N-fluorobenzenesulfonimide (30 g, Tokyo Kasei Kogyo) in tetrahydrofuran (100 ml) over 1 hour so that the temperature of the reaction mixture should not exceed -65¡ã C. Subsequently, the mixture was stirred at the same temperature for 1 hour, then the cooling bath was removed, and the mixture was gradually warmed to room temperature. The reaction mixture was added with saturated aqueous sodium hydrogencarbonate (300 ml) and ethyl acetate (300 ml), and stirred at room temperature for 12 hours. The organic layer was separated, and the aqueous layer was extracted with ethyl acetate 3 times (200 ml for each time). The combined organic layer was washed with saturated brine (500 ml), and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, the residue was added with chloroform (250 ml), and the insoluble solids were removed by filtration. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel chromatography (n-hexane:ethyl acetate=5:1) to obtain the title compound (3.6 g).MS (m/z): 148 (MH+)1H-NMR (CDCl3) delta (ppm): 7.26-7.71 (1H, m), 7.75-7.82 (1H, m), 8.03 (1H, dd, J=1.2 Hz, J=8.4 Hz), 8.10 (1H, d, J=8.4 Hz), 8.38 (1H, s), 9.08 (1H, s), 1532-97-4

The synthetic route of 1532-97-4 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; Asahi Kasei Pharma Corporation; US2009/48223; (2009); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.84468-15-5,Isoquinoline-5-sulfonyl chloride,as a common compound, the synthetic route is as follows.

REFERENTIAL EXAMPLE 1 In 200 ml of chloroform was dissolved 12.0 g of 1,2-diaminoethane, and to the solution was added dropwise 100 ml of a chloroform solution containing 4.55 g of 5-isoquinolinesulfonyl chloride under cooling with ice. After the dropwise addition of the chloroform solution, the mixed solution was stirred at a temperature of 20 C. to 25 C. for two hours, and then the reaction solution was extracted with a 10% aqueous hydrochloric acid solution. The pH of the aqueous layer was adjusted to 10 with a 10% aqueous sodium hydroxide solution, and the aqueous layer was extracted with chloroform. The chloroform layer extracted was washed with water and dried with anhydrous potassium carbonate. Then the chloroform was distilled from the chloroform layer, and the residue obtained was subjected to a column chromatography [silica gel: 200 g; developing solvent: 2% methanol/chloroform (volume ratio)] to give 3.3 g of N-(2-aminoethyl)-5-isoquinolinesulfonamide as an oily substance in a yield of 66%. The same procedures as described above were repeated using the compounds of Formula (V) as set forth in Table 1 under the reaction conditions as set forth in Table 1, and N-(omega-aminoalkyl)-5-isoquinolinesulfonamide as set forth in Table 1 were obtained.

84468-15-5, As the paragraph descriping shows that 84468-15-5 is playing an increasingly important role.

Reference£º
Patent; Asahi Kasei Kogyo Kabushiki Kaisha; Hidaka; Hiroyoshi; US4634770; (1987); A;,
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119-65-3, Isoquinoline is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

To a stirred solution of isoquinoline (24 g, 186 mmol) in AcOH (50 mL) was added NBS (36.2 g, 204.6 mmol) at RT and the reaction mixture was heated to 100 C. overnight. Then it was cooled to RT and concentrated under reduced pressure. The crude product obtained was purified by flash column chromatography (5% EtOAc:Hexanes) to furnish the title compound (9.2 g, 23.8%) as an oil.

119-65-3, The synthetic route of 119-65-3 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; LUPIN LIMITED; KULKARNI, Sanjeev Anant; MADAN, Sachin; JANA, Nirmal Kumar; TALE, Prashant Vitthalrao; CHEEMALA, Narasimha Murthy; MAHANGARE, Sachin Jaysing; VIDHATE, Prashant Popatrao; KULKARNI, Chaitanya Prabhakar; PATEL, Sapana Suresh; PATIL, Amolsing Dattu; ZADE, Seema Prabhakar; SHINDE, Rohan Mahadev; PALLE, Venkata P.; KAMBOJ, Rajender Kumar; US2013/178457; (2013); A1;,
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With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.1015070-56-0,6-Bromoisoquinolin-4-ol,as a common compound, the synthetic route is as follows.

E. 6-Bromo-4-methoxyisoquinoline. To a solution of 6-bromoisoquinolin-4-ol (293 mg, 1.31 mmol) in DMF (6 mL) was added methanol (0.6 mL), and (trimethylsilyl)diazomethane (0.658 mL, 1.31 mmol, 2.0 M in hexanes). The reaction was stirred at room temperature for 90 minutes then additional (trimethylsilyl)diazomethane (1.32 mL, 2.62 mmol, 2.0 M in hexanes) was added. The reaction was stirred at room temperature for 60 minutes, quenched with acetic acid (3 mL), and stirred an additional 20 minutes. The mixture was neutralized with saturated aqueous sodium bicarbonate and extracted three times with dichloromethane. The combined organic layers were washed with brine and dried over anhydrous sodium sulfate. The solution was filtered and the volatiles were evaporated. The resulting material was purified using chromatography on a normal phase silica gel column with 0 to 45% ethyl acetate in hexanes. Fractions containing clean product were combined and the solvent evaporated. The material was dried under vacuum at room temperature to provide the title compound (312 mg, 34%). MS (ESI) m/z 238 [M+1]+ and MS (ESI) m/z 238 [M+1]+., 1015070-56-0

As the paragraph descriping shows that 1015070-56-0 is playing an increasingly important role.

Reference£º
Patent; D’Sidocky, Neil R.; Harris, Roy L.; Hegde, Sayee G.; Hilgraf, Robert; McCarrick, Margaret A.; McKie, Jeffrey A.; Mortensen, Deborah S.; Nadolny, Lisa; Perin-Ninkovic, Sophie M.; Sapienza, John J.; Wright, Jonathan L.; US2008/242694; (2008); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.22246-04-4,7-Methoxy-3,4-dihydroisoquinolin-1(2H)-one,as a common compound, the synthetic route is as follows.

To a solution of 31.25g(0.29 mol) of sodium hydride in 50 mL of dry N,N-dimethylformamide a solution of 11.50 g (65.0 mmol) 7-methoxy-3,4-dihydroisoquinolin-1(2H)-onein 30 mL of N,N-dimethylformamideand 10.15g (71.5mmol) iodomethane was added dropwise under ice-cooling. The reaction mixture was stirred at room temperature (20C) for 1.5 hrs. The reaction was quenched with 480ml water,extracted with ethyl acetate (100 mL x 3), washed with brine,and dried over Na2SO4.The organic phase was evaporated under reduced pressure togivecrude oil.The residue was purified withcolumn chromatography (eluent: ethyl acetate : hexane = 1 : 5) to afford yellowoil(11.17 g, 58.5mmol, 90% yield)., 22246-04-4

As the paragraph descriping shows that 22246-04-4 is playing an increasingly important role.

Reference£º
Article; Dou, Fei; Cao, Xudong; Jing, Peng; Wu, Chunyan; Zhang, Yuxin; Chen, Yin; Zhang, Guisen; Bioorganic and Medicinal Chemistry Letters; vol. 29; 12; (2019); p. 1492 – 1496;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.84468-15-5,Isoquinoline-5-sulfonyl chloride,as a common compound, the synthetic route is as follows.

To a solution of compound 33b, 4-Methyl-2-(5-piperidin-3-yl-4′-trifluoromethyl-biphenyl-3-yl)-pentanoic acid ethyl ester (48.0 mg, 0.106mmol) in anhydrous dichloromethane (4 ml) was added isoquinoline -5-sulfonyl chloride (42.1 mg, 0.16 mmol) and DIEA (37.0 mul, 0.21 mmol). The reaction stirred at room temperature over 72 hours, was diluted with dichloromethane and washed with sat. NaHCO3, and brine, dried and filtered. Purification by silica gel chromatography (Isco) gave the desired product, (60.0 mg, 88%). Calcd for C35H37F3N2O4S (M+H) 638.74, Found 639.3.

84468-15-5, The synthetic route of 84468-15-5 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; HO, Chih Yung; US2009/105275; (2009); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

19493-45-9, 3-Chloroisoquinoline is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Compound A1 (5 mmol) and compound B1 (6 mmol) were weighed into a three-neck flask and Pd(pph3)4 (0.15 mmol) was added as a catalyst.K2CO3 (16 mmol) was added, vacuum was applied to the double-row tubes, nitrogen-filled vacuum was applied, and the mixture was recycled three times. Finally, the reaction system was protected with nitrogen.Add 15 mL each of dimethyl ether and water with a syringe and heat to reflux. The reaction was refluxed for 24 h and cooled to room temperature. After vortexing, the column was purified and product 11 was obtained.

19493-45-9, The synthetic route of 19493-45-9 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; Shanghai Hehui Optoelectric Co., Ltd.; Liang Hua; (13 pag.)CN107586308; (2018); A;,
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Isoquinoline | C9H7N – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.80278-67-7,Isoquinoline-5-carbaldehyde,as a common compound, the synthetic route is as follows.

80278-67-7, General procedure: To a dried two-neck round-bottom flask containing DMF (0.7mL for 1.10mmol of starting material) chilled in an ice bath, POCl3 (1.95 equiv) was added slowly. After stirring for 20min, a solution of an indole derivative (1.0 equiv) in DMF (3mL for 1.10mmol of starting material) was added dropwise. The reaction was allowed to warm to room temperature and allowed to stir for 1.5h. The reaction was quenched by adding ice followed by 1N NaOH (40mL) dropwise in an ice bath. The crude mixture was allowed to stand at room temperature and the precipitate formed was filtered to afford the 3-formyl-indole derivative product.

80278-67-7 Isoquinoline-5-carbaldehyde 7016853, aisoquinoline compound, is more and more widely used in various fields.

Reference£º
Article; See, Cheng Shang; Kitagawa, Mayumi; Liao, Pei-Ju; Lee, Kyung Hee; Wong, Jasmine; Lee, Sang Hyun; Dymock, Brian W.; European Journal of Medicinal Chemistry; vol. 156; (2018); p. 344 – 367;,
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Isoquinoline | C9H7N – PubChem