Day: March 18, 2022

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.63927-22-0,8-Bromoisoquinoline,as a common compound, the synthetic route is as follows.

63927-22-0, To a 100 mL round-bottomed flask equipped with condenser and N2 inlet were added 2.46 g (11.8 mmol) 8-bromoisoquinoline, 1.68 mL (14.1 mmol) benzyl bromide, and 10 mL ethanol. The solution was heated at reflux for 6 hr, cooled, and evaporated. The oil was dissolved in 50 mL methanol, and 1.73 g (27.6 mmol) sodium cyanoborohydride was added. The solution was stirred at room temperature for 5 days, then diluted with water and extracted with three portions of ethyl acetate. The organic layer was washed with brine, dried over sodium sulfate, and evaporated. The residue was chromatographed on silica gel using hexane/ethyl acetate to afford 1.98 g (59percent) of an oil. 1H-NMR (delta, CDCl3): 2.68 (m, 2H), 2.88 (m, 2H), 3.68 (m, 2H), 3.75 (m, 2H), 7.0-7.1 (m, 2H), 7.2-7.4 (m, 6H).

63927-22-0 8-Bromoisoquinoline 9859134, aisoquinoline compound, is more and more widely used in various fields.

Reference：
Patent; Pfizer Inc; US2004/254193; (2004); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

223671-15-6, 7-Bromoisoquinolin-1-ol is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Preparation 63 1,4-Dichloro-7-isoquinolinecarbonyl chloride A solution of N-chlorosuccinimide (4.13 g, 31 mmol) in MeCN (50 mL) was added dropwise to a stirred solution of 7-bromo-1-(2H)-isoquinolone (6.6 g, 29.5 mmol) in MeCN (150 mL) which was heating under reflux. The mixture was heated under reflux for an additional 3 h and then cooled to room temperature. The resulting precipitate was collected by filtration, with MeCN rinsing, and then dried in vacuo to give 7-bromo-4-chloro-1(2H)-isoquinolone (6.72 g, 26.0 mmol) as a white solid. mp 241-243 C. 1H (DMSO-d6, 300 MHz) delta 7.5 (1H, s), 7.73 (1H, d), 7.8 (1H, dd), 8.3 (1H, s) ppm. LRMS 259 (MH+), 517 (M2H+). Anal. Found: C, 41.69; H, 1.90; N, 5.37. Calc for C9H5BrClNO: C, 41.80; H, 1.95; N, 5.42., 223671-15-6

As the paragraph descriping shows that 223671-15-6 is playing an increasingly important role.

Reference：
Patent; PFIZER INC.; Pfizer Limited; EP1077945; (2003); B1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.724422-42-8,6-Bromo-2-methyl-3,4-dihydroisoquinolin-1(2H)-one,as a common compound, the synthetic route is as follows.,724422-42-8

6-bromo-2-methyl-3,4-dihydroisoquinolin-1-one (250 mg, 1.04 mmol), bis(pinacolato)diboron (397 mg, 1.56 mmol), potassium acetate (306 mg, 3.12 mmol) and 1,4-dioxane (10 mL) were degassed with bubbling nitrogen then [1,1′-bis(diphenylphosphino)ferrocene]palladium(II) chloride dichloromethane complex (85 mg, 0.10 mmol) was added and further 1,4-dioxane (10 mL). The resulting mixture was further degassed and then heated to 95 C for 18 h. The reaction mixture was allowed to cool to r.t., filtered through a plug of celite. Solvents were evaporated to afford crude 2-methyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3,4-dihydroisoquinolin-1-one as a brown gum. UPLC-MS (ES+, Method A): 1.71 min, m/z 288.2 [M+H]+

The synthetic route of 724422-42-8 has been constantly updated, and we look forward to future research findings.

Reference：
Patent; REDX PHARMA PLC; JONES, Clifford, D.; BUNYARD, Peter; PITT, Gary; BYRNE, Liam; PESNOT, Thomas; GUISOT, Nicolas, E.S.; (318 pag.)WO2019/145729; (2019); 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.129075-49-6,5-Methoxy-3,4-dihydroisoquinolin-1(2H)-one,as a common compound, the synthetic route is as follows.

General procedure: To a suspension of NaH (0.11g, 4.5mmol) in DMF (10 mL), a solution in DMF (5 mL) of the appropriate 3,4-dihydroisoquinolin-1-one (1.8 mmol), was added in a dropwise manner, at 0 C under a stream of N2. After 15min, 1-bromo-3-chloropropane was added in a dropwise manner and the mixture was allowed to warm to room temperature and was kept under stirring for 30 min. After cooling to 0 C H2O was added and the solvent was removed under reduced pressure. The residue was taken up with water and extracted with AcOEt (3×10 mL). The organic layers were collected, dried over Na2SO4 and evaporated under reduced pressure. The crude residue was purified by column chromatography with CH2Cl2/AcOEt (1:1) as eluent., 129075-49-6

129075-49-6 5-Methoxy-3,4-dihydroisoquinolin-1(2H)-one 7385098, aisoquinoline compound, is more and more widely used in various fields.

Reference：
Article; Abate, Carmen; Selivanova, Svetlana V.; Mueller, Adrienne; Kraemer, Stefanie D.; Schibli, Roger; Marottoli, Roberta; Perrone, Roberto; Berardi, Francesco; Niso, Mauro; Ametamey, Simon M.; European Journal of Medicinal Chemistry; vol. 69; (2013); p. 920 – 930;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

1242157-15-8, 6-Bromo-8-fluoro-3,4-dihydroisoquinolin-1(2H)-one is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

1242157-15-8, To a stirred solution of 6-bromo-8-fluoro-3,4-dihydro-2H-isoquinolin-l-one (CAS 1242157-15- 8; 3 g, 12.29 mmol, 1 eq.) in THF (30 mL) is added dropwise a solution of MeONa 25 w% in MeOH (3.35 mL, 14.75 mmol, 1.2 eq.). The reaction mixture is stirred at RT for 2 h, quenched with a sat. aq. NH4CI solution and THF is evaporated. The solid obtained in the remaining aq. phase is filtered to afford the desired compound Int 40.

The synthetic route of 1242157-15-8 has been constantly updated, and we look forward to future research findings.

Reference：
Patent; GALAPAGOS NV; DESROY, Nicolas; JONCOUR, Agnes, Marie; PEIXOTO, Christophe; TEMAL-LAIB, Taoues; TIRERA, Amynata; BUCHER, Denis; AMANTINI, David; DE VOS, Steve, Irma, Joel; BRYS, Reginald, Christophe, Xavier; (396 pag.)WO2019/238424; (2019); 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.1242157-15-8,6-Bromo-8-fluoro-3,4-dihydroisoquinolin-1(2H)-one,as a common compound, the synthetic route is as follows.

1242157-15-8, To a mixture of 6-bromo-8-fluoro-3,4-dihydro-2H-isoquinolin-1-one (1.6 g, 6.5 mmol), tricyclohexylphosphine (0.182 g, 0.65 mmol) and Pd(OAc)2 (0.072 g, 0.032 mmol) in 15 ml toluene placed under argon in a pressure flask was added cyclopropyl boronic acid (1.12 g, 13 mmol), potassium phosphate (6.9 g, 32.5 mmol) and 1.5 ml water. The flask was sealed and the mixture was heated under stirring for 4 hours at 100 C. After cooling the reaction mixture was diluted with ethyl acetate and the organic phase washed with brine, dried with sodium sulfate and concentrated. The residue was purified by flash chromatography (ethyl acetate) affording 0.93 g (71.5% yield) of I.

The synthetic route of 1242157-15-8 has been constantly updated, and we look forward to future research findings.

Reference：
Patent; Berthel, Steven; Firooznia, Fariborz; Fishlock, Daniel; Hong, Jun-Bae; Lou, Yan; Lucas, Matthew; Owens, Timothy D.; Sarma, Keshab; Sweeney, Zachary Kevin; Taygerly, Joshua Paul Gergely; US2010/222325; (2010); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

1242157-15-8, 6-Bromo-8-fluoro-3,4-dihydroisoquinolin-1(2H)-one is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

1242157-15-8, General procedure: To a solution of fluoro derivative (1 eq.) in THF or DMF is added dropwise MeONa (25% in MeOH, 1.2 eq.) or EtONa (25% in EtOH, 1.2 eq.) and the suspension is stirred for 1.5 h to 20 h. More alkoxide solution (0 to 4.8 eq.) can be added to push the conversion further. The reaction is quenched with a sat. aq. NH4CI solution and the organic solvent is evaporated in vacuo. If a precipitate forms in the aqueous phase, it is filtered, washed with water and dried to afford the expected product. If no precipitation occurs, the aqueous phase is extracted with DCM, the organic layer is dried over MgSCfi, filtered and concentrated to give the expected compound.

1242157-15-8 6-Bromo-8-fluoro-3,4-dihydroisoquinolin-1(2H)-one 59473776, aisoquinoline compound, is more and more widely used in various fields.

Reference：
Patent; GALAPAGOS NV; DESROY, Nicolas; JONCOUR, Agnes, Marie; PEIXOTO, Christophe; TEMAL-LAIB, Taoues; TIRERA, Amynata; BUCHER, Denis; AMANTINI, David; DE VOS, Steve, Irma, Joel; BRYS, Reginald, Christophe, Xavier; (396 pag.)WO2019/238424; (2019); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

223671-15-6, 7-Bromoisoquinolin-1-ol is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

INTERMEDIATE 9 7-Bromo-1-Chloroisoquinoline To phosphorus oxychloride (46.6 mL, 0.5 mol) at room temperature was added, portionwise, [7-BROMO-1-HYDROXYISOQUINOLINE] (11.2 g, 0.05 mol). The mixture was heated to [100 C] for 90 min with rapid stirring. On cooling to room temperature, the mixture was poured, cautiously onto ice/water (200 mL). Dropwise addition of aqueous ammonia raised the pH=8 and the resulting precipitate was collected by filtration, washing with cold water. The solid was dried under reduced vacuum at [45 C] for 12 h. 13.86 g (115 %) Beige solid [ISOLATED.’H] NMR (DMSO-d6) 8 8.4 (s, 1 H), 8.34-8. 38 (d, J = 6 Hz, 1 H), 8.03-8. 07 (m, 2 H), 7.91-7. 96 (d, J = 6 Hz, 1 H); HPLC : 96%; LCMS: 242,244, 246.

223671-15-6, The synthetic route of 223671-15-6 has been constantly updated, and we look forward to future research findings.

Reference：
Patent; BIOVITRUM AB; WO2004/828; (2003); 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.724422-42-8,6-Bromo-2-methyl-3,4-dihydroisoquinolin-1(2H)-one,as a common compound, the synthetic route is as follows.,724422-42-8

Step 2; Compound 27 was synthesized from Step 1, and 5-bromo-2-2-methyl-2H-1,2,3,4-tetrahydroisoquinolin-1-one was synthesized using a method described in United States Patent Application Publication No. 2006/0063799. To a solution of Compound 27 (10 g, 38.7 mmol) and 5-bromo-2-2-methyl-2H-1,2,3,4-tetrahydroisoquinolin-1-one (10.23 g, 42.6 mmol) in 1,2-dimethoxyethane (150 mL), tris(dibenzylideneacetone)dipalladium (1.77 g, 1.93 mmol), dicyclohexyl(2′,4′,6′-triisopropylbiphenyl-2-yl)phosphine (3.69 g, 7.74 mmol), and potassium phosphate (11.51 g, 54.2 mmol) were added. The mixture was then heated at reflux under flow of nitrogen for 2 hours. After cooling to room temperature, tris(dibenzylideneacetone)dipalladium (1.77 g, 1.93 mmol) and dicyclohexyl(2′,4′,6′-triisopropylbiphenyl-2-yl)phosphine (3.69 g, 7.74 mmol) were added thereto. The mixture was refluxed under flow of nitrogen for 1 hour. After cooling to room temperature, the reaction mixture was filtered. The residue was washed sequentially with 1,2-dimethoxyethane and water, air-dried, and then dried in vacuo at 70C to yield crude product 28 (14.4 g). LC-MS (Method C): 1.82 min, [M+H]+ = 418 1H-NMR (DMSO-d6) delta: 10.04 (1H, s), 7.88-7.80 (1H, m), 7.45-7.30 (5H, m), 6.98-6.92 (1H, m), 6.85-6.80 (1H, m), 6.11 (1H, s), 5.14 (2H, s), 4.44-4.32 (2H, m), 4.28-4.19 (2H, m), 3.56-3.47 (2H, m), 3.03-2.96 (5H, m).

724422-42-8 6-Bromo-2-methyl-3,4-dihydroisoquinolin-1(2H)-one 66612874, aisoquinoline compound, is more and more widely used in various fields.

Reference：
Patent; Shionogi & Co., Ltd.; EP2426135; (2012); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

1215767-89-7, 5-Bromo-1,3-dichloroisoquinoline is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Step B: To 5 -bromo- 1,3-dichloroisoquinoline (1.5 g, 5.4 mmol) inMeOH (15 mL) was added 25% sodium methoxide/MeOH (1.4 mL, 6.4 mmol), and the mixture was heated at 70 C for 30 min. The mixture was allowed to cool, and then water was added. The solid was collected by filtration to afford crude 5-bromo-3- chloro-l-methoxyisoquinoline (2.3 g, quantitative) which was used without further purification. LC-MS (ESI) m/z 21 ‘4 (M+H)+., 1215767-89-7

As the paragraph descriping shows that 1215767-89-7 is playing an increasingly important role.

Reference：
Patent; AMBIT BIOSCIENCES CORPORATION; FARAONI, Raffaella; HADD, Michael, J.; HOLLADAY, Mark, W.; ROWBOTTOM, Martin; SETTI, Eduardo; WO2012/30944; (2012); A2;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem