Day: November 6, 2020

63927-23-1, 5-Bromo-8-nitroisoquinoline is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

63927-23-1, 1. A slurry of 720 mg (2.85 mmol) 5-bromo-8-nitroisoquinoline and 2.48 g (4.27 mmol) magnesium monoperoxyphthalate hexahydrate (85%) in 11 ml 2-propanol was stirred for 6 days at room temperature. The reaction mixture was diluted with brine. The solids were filtered off, washed well with water and dried under vacuum yielding 5-bromo-8-methyl-isoquinoline 2-oxide as yellow solid; HPLC/MS: 1.52 min, [M+H] 269/271.

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

Reference£º
Patent; MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG; Dorsch, Dieter; Jonczyk, Alfred; Hoelzemann, Guenter; Amendt, Christiane; Zenke, Frank; US2013/102603; (2013); 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.18881-17-9,(S)-(1,2,3,4-Tetrahydroisoquinolin-3-yl)methanol,as a common compound, the synthetic route is as follows.,18881-17-9

Step A: Benzyl (3S)-3-(hydroxymethyl)-3,4-dihydro-1H-isoquinoline-2-carboxylate This compound is obtained using a protocol from the literature (R. B. Kawthekar et al South Africa Journal of Chemistry 63, 195, 2009) starting from 15 g of (3S)-1,2,3,4-tetrahydroisoquinolin-3-ylmethanol (91.9 mmol) in the presence of benzyl chloroformate and triethylamine in solution in dichloromethane. After purification by chromatography over silica gel using petroleum ether and ethyl acetate as eluants, the title product is obtained in the form of an oil. 1H NMR: delta (300 MHz; DMSO-d6; 300K): 7.33 (m, 5H, aromatic Hs, O-benzyl); 7.15 (s, 4H, aromatic Hs, H tetrahydroisoquinoline); 5.13 (s, 2H, CH2-Ph); 4.73 (d, 1H, H tetrahydroisoquinoline); 4.47 (m, H, CH2OH); 4.36 (m, 1H, H tetrahydroisoquinoline); 4.28 (d, 1H, H tetrahydroisoquinoline); 3.39 (dd, 1H, CH2OH); 3.23 (dd, 1H, CH2OH); 2.93 (dd, 1H, H tetrahydroisoquinoline); 2.86 (dd, 1H, H tetrahydroisoquinoline) IR: nu: OH: 3416 cm-1; nu: C-H: 754 cm-1

As the paragraph descriping shows that 18881-17-9 is playing an increasingly important role.

Reference£º
Patent; LE TIRAN, Arnaud; LE DIGUARHER, Thierry; STARCK, Jerome-Benoit; HENLIN, Jean-Michel; GUILLOUZIC, Anne-Francoise; DE NANTEUIL, Guillaume; GENESTE, Olivier; FEJES, Imre; TATAI, Janos; NYERGES, Miklos; DAVIDSON, James Edward Paul; MURRAY, James Brooke; CHEN, I-Jen; DURAND, Didier; US2015/31673; (2015); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

1198-30-7, 1-Isoquinolinecarbonitrile is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

1198-30-7, EXAMPLE X Preparation of N-[(1,2,3,4-Tetrahydro-2-methyl-1-isoquinolyl)methyl]-N-benzylpropionamide oxalate (TR-3389) Title Compound I, in which R=CH3 R’=H; X=H; A=CH; pY=C2 H2 O4 and q=0 and n=1 was prepared as follows: 1-Cyanoisoquinoline (15.4 g; 0.1 mole) was stirred and heated at reflux for 2.5 hours in 900 ml. of a 1:1 formic acid water solution with 30 g of Raney nickel alloy. The reaction was filtered and the filtrate made basic with 20% NaOH. The resulting suspension was extracted with dichloromethane whereupon the organic layer was separated, dried over MgSO4 and evaporated in vacuo to leave 9.5 g of a green oil. The crude oil was chromatographed through a silica gel column with ethyl acetate; evaporation of the ethyl acetate in vacuo left 7.5 g (40% theory) of 1-formamidoisoquinoline as a yellow oil. This compound was converted to the methiodide salt and reduced catalytically as in Example I to give a 50% yield of 1-formamidomethyl-2-methyl-1,2,3,4-tetrahydroisoquinoline as a yellow oil, 4 g (0.02 mole) of which was refluxed for 60 minutes in 10 ml of concentrated HCl.

1198-30-7 1-Isoquinolinecarbonitrile 306057, aisoquinoline compound, is more and more widely used in various fields.

Reference£º
Patent; Miles Laboratories, Inc.; US4232160; (1980); A;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

164148-92-9, tert-Butyl 6-amino-3,4-dihydroisoquinoline-2(1H)-carboxylate is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

2a (1.42 g, 5.7 mmol) was added to a mixture of amyl nitrate (1.42 g, 12.1 mmol) and Cu13r2 (2.16 g, 9.67 mmol) in CH3CN (20 mE). The mixture was heated at 80 C. for 2 hours, then cooled and evaporated under reduced pressure. The residue was purified by silica gel colunm chromatography (PE:EA=10: 1, v:v) to provide 2b (1.96 g, 78% yield) as a yellow oil. LC-MS: 312 [M+1].

164148-92-9, 164148-92-9 tert-Butyl 6-amino-3,4-dihydroisoquinoline-2(1H)-carboxylate 2756371, aisoquinoline compound, is more and more widely used in various fields.

Reference£º
Patent; HELSINN HEALTHCARE SA; Giuliano, Claudio; Daina, Antoine; Pietra, Claudio; (254 pag.)US2017/275301; (2017); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

1075-11-2, 6-Fluoroisoquinoline is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

4-Chloro-6-fluoro-isoquinoline (24) EPO A solution of 1.5 g 6-fluoro-isoquinoline (23) in 4.5 ml sulfuryl chloride was heated to 60 0C in a microwave reactor (CEM Discovery) for 8 h. After cooling to room temperature the mixture was poured on ice and extracted three times with CHCI3. After drying over Na2SO4 the solvent was distilled off and the crude product was purified by flash chromatography to yield 930 mg of compound 24. LCMS Method No. 1 , retention time 1.37 min, detected mass 182.01 [M+H]+, 1075-11-2

The synthetic route of 1075-11-2 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; SANOFI-AVENTIS DEUTSCHLAND GMBH; WO2007/240; (2007); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

13130-79-5, 1-Bromoisoquinolin-3-amine is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

To a solution of 1-bromoisoquinolin-3-amine (3.00 g, 13.5 mmol) and Et3N (3.8 mL, 27 mmol) in dichloromethane (50 mL) was added a solution of 1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)cyclopropanecarbonyl chloride (4.18 g, 13.5 mmol) in dichloromethane (50 mL). The resulting reaction mixture was allowed to stir at room temperature for 18 h. The reaction mixture was then washed with 1N aqueous NaOH (2¡Á200 mL), 1 N aqueous HCl (1¡Á200 mL) and saturated aqueous NaHCO3 (1¡Á200 mL). The organics were dried over sodium sulfate and evaporated. The resulting material was purified by silica gel chromatography eluting with 0-50% ethyl acetate/hexanes to yield N-(1-bromoisoquinolin-3-yl)-1-(2,2-difluorobenzo[d][1,3]-dioxol-5-yl)cyclopropanecarboxamide (4.2 g, 70%). ESI-MS m/z calc. 446.0, found 447.1 (M+1)+. Retention time 2.39 minutes.

13130-79-5, The synthetic route of 13130-79-5 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; HADIDA RUAH, SARA S.; Miller, Mark; Zhou, Jinglan; Bear, Brian; Grootenhuis, Peter; US2009/143381; (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.491-30-5,1-Hydroxyisoquinoline,as a common compound, the synthetic route is as follows.

In a 50 ml. round-bottom flask, isocarbostyril (0.50 g, 3.4 mmol) and phosphorus pentabromide (2.7 g, 9.8 mmol) were heated at 140-145 C for 10 min. The solid melted and lightened in color. The liquid solidified, and the reaction was stirred for an additional 10 min. On completion, the reaction mixture was cooled to room temperature, and ice/H20 (10 ml.) was poured into the flask. The solid precipitate was collected by filtration, washed with H20 (2 x 50 ml_), and dried under vacuum to obtain 860 mg (89% yield) of (1) as a buff-colored solid., 491-30-5

The synthetic route of 491-30-5 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS; MOORE, Terry; LAZZARA, Phillip; DAVID, Brian; RICHARDSON, Benjamin; JAIN, Atul, D.; (87 pag.)WO2019/195348; (2019); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

34784-05-9, 6-Bromoisoquinoline is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

34784-05-9, 6-bromoisoquinoline (1.80g, 8.66 mmol) was dissolved in DCM (40 ml_), after cooling down the reaction to 0C m-CPBA (2.30 g, 1.3 eq, 77% max) was added slowly in small portion. The reaction was warmed up to RT to become a kind of white suspension. In 4 hours, 100ml_ DCM was added into the solution, and washed with saturated Na2C03 solution, water and brine. The separated organic layer was dried over Na2S04 and removed under the vacuum to get the yellow solid N-oxide 6-bromoisoquinoline without further purification (1.82 g, yield -93%).

34784-05-9 6-Bromoisoquinoline 313681, aisoquinoline compound, is more and more widely used in various fields.

Reference£º
Patent; CUREGENIX CORPORATION; QIN, Xiaoli; AN, Songzhu; HUANG, Tao; (131 pag.)WO2016/191525; (2016); 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.201150-73-4,tert-Butyl 5-amino-3,4-dihydroisoquinoline-2(1H)-carboxylate,as a common compound, the synthetic route is as follows.

To a solution of the product from the previous step described above (0.2 g, 0.81 mmol) in THF (5 mL) was added NaH at 0 C. After 15 minutes, CH3I was added and the stirring continued for overnight at room temperature. After completion the reaction mixture was quenched with ice water, extracted with EtOAc (25 mL), dried (Na2S04) and concentrated. The Boc group was removed with 60% TFA-DCM (2 mL) at 0 C to give 110 mg (77.5%) of the final product as a light greenish solid. MS: 177.1 (MH+)., 201150-73-4

As the paragraph descriping shows that 201150-73-4 is playing an increasingly important role.

Reference£º
Patent; INTERMUNE, INC.; ARRAY BIOPHARMA INC.; WO2005/37214; (2005); A2;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

215453-53-5, 7-Bromoisoquinolin-1-amine is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Part 6. 1-[Bis(t-butoxycarbonyl)amino]-7-bromoisoquinoline A solution of 740 mg (3.32 mmol) of 1-amino-7-bromoisoquinoline in 50 mL of acetonitrile was treated with 1.4 mL of N,N-diiospropylethylamine and 100 mg of 4-(N,N-dimethylamino)pyridine, followed by 3.0 g (4.1 eq) of di-t-butyldicarbonate, and the reaction was stirred at 40 C. for 1 hr. By HPLC analysis, there was still some starting amino compound that remained, so another 1.0 g of di-t-butyldicarbonate were added, and the reaction was stirred at 40 C. for another 30 min. The reaction mixture was concentrated to give a dark oil, which was subjected to flash column chromatography on silica gel with 20% ethyl acetate in hexanes to give 736 mg of the desired product as a light yellow solid. Also isolated were 156 mg of product as a somewhat less pure fight yellow solid, making the total yield 64%., 215453-53-5

As the paragraph descriping shows that 215453-53-5 is playing an increasingly important role.

Reference£º
Patent; Millennium Pharmaceuticals, Inc.; US6534535; (2003); B1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem