Day: November 9, 2020

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.82827-09-6,6-Bromoisoquinolin-1(2H)-one,as a common compound, the synthetic route is as follows.

82827-09-6, To toluene (4 mL) was added 6-bromoisoquinolin-l(2H)-one (0.5 g, 2.232 mmol), diphenylmethanimine (0.447 mL, 2.68 mmol), BINAP (0.973 g, 1.562 mmol), and sodium t-butoxide (0.643 g, 6.69 mmol). The slurry was degassed for 10 min with N2 followed by the addition of r¡ã(dibenzylideneacetone) dipalladium(O) (0.101 g, 0.111 mmol) and the reaction mixture was heated to 1050C for 72 h. Hydroxylamine hydrochloride (0.279 g, 4.02 mmol), sodium acetate (0.439 g, 5.36 mmol) and MeOH (20 mL) were subsequently added and the reaction mixture was stirred at rt for 72 h, concentrated and purified by silica gel chromatography (DCM and 0-10%MeOH as eluents) to afford 130A (0.32g, 90%) as a tan powder. LCMS m/z 161.1 [M + H]+.

As the paragraph descriping shows that 82827-09-6 is playing an increasingly important role.

Reference£º
Patent; BRISTOL-MYERS SQUIBB COMPANY; WO2008/157162; (2008); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

18881-17-9, (S)-(1,2,3,4-Tetrahydroisoquinolin-3-yl)methanol is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,18881-17-9

To 30.2g [(3S) – 1, 2, 3, 4-tetrahydrosquinoline-3-yl] methanol (185mmol) in 750 ml of methylene chloride is added in solution 91.71g toluene sulfonyl chloride (481mmol), then dropwise 122.3mLN, N, N-triethylamine (740mmol). Then the temperature of the reaction mixture is stirred for 20 hours. Furthermore, the dichloromethane is used for dilution, for sequentially 1MHCl solution, saturated NaHCO3solution, then washed with saturated NaCl solution until neutral. Then the organic phase through MgSO4drying, filtering, concentrated to dry. Then the obtained solid is dissolved in a minimum volume of methylene chloride, then adding cyclohexane to form precipitate. Then filtering out the precipitated, with cyclonexane washing. After drying, the title of the crystalline form of the product is obtained.

18881-17-9 (S)-(1,2,3,4-Tetrahydroisoquinolin-3-yl)methanol 776757, aisoquinoline compound, is more and more widely used in various fields.

Reference£º
Patent; France Servier Pharmaceuticals; p, Casara; T, Le Diguaher; J-M, Henlin; J-B, Starck; A, Le Tiran; G, De Nanteuil; O, Geneste; J¡¤E¡¤P, Davidson; J¡¤B, Murray; I-J, Chen; C, Walmsley; C¡¤J, Graham; S, Ray; D, Maddox; S, Bedford; (116 pag.)CN105408321; (2016); A;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

18881-17-9, (S)-(1,2,3,4-Tetrahydroisoquinolin-3-yl)methanol is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

18881-17-9, To a stirred solution of 2-(4-chloro-3-dibutylcarbamoyl-5-methyl-pyrazol-l-yl)-5- methoxy-benzoic acid (0.35 g, 0.82 mmol) and (S)-(l,2,3,4-tetrahydroisoquinolin-3-yl)methanol (0.13 g, 0.82 mmol) in dichloromethane (8 mL) under nitrogen atmosphere was added l-ethyl-3- (3-dimethylaminopropyl)carbodiimide (0.16 g, 0.82 mmol) and hydroxybenzotriazole (0.13 g, 0.82 mmol). The mixture was stirred at ambient temperature for 5 minutes. Triethylamine (0.34 mL, 2.5 mmol) was added to the mixture. The reaction was stirred for 60 hours at ambient temperature. The mixture was washed with water and purified by eluting through a silica gel column with a 10 to 100% ethyl acetate / heptane gradient to afford the title compound (21 mg, 4.5% yield). MS (ESI) [m/e, (M+H)+] = 567.3. XH NMR (400 MHz, chloroform-d) delta ppm 6.75 – 7.36 (m, 7 H), 4.13 – 5.41 (m, 4 H), 3.80 – 3.96 (m, 3 H), 2.51 – 3.71 (m, 8 H), 2.17 – 2.32 (m, 3 H), 1.48 – 1.68 (m, 4 H), 1.19 – 1.44 (m, 4 H), 0.70 – 0.97 (m, 6 H).

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

Reference£º
Patent; NOVARTIS AG; FORD, Daniel; PORTER, John Robert; VISSER, Michael Scott; YUSUFF, Naeem; WO2013/96051; (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.893566-75-1,Tert-butyl 8-bromo-3,4-dihydroisoquinoline-2(1H)-carboxylate,as a common compound, the synthetic route is as follows.,893566-75-1

Example 144: 1,1,1,3,3,3-Hexafluoropropan-2-yl 1-((2-ethyl-1,2,3,4-tetrahydroisoquinolin-8- yl)methyl)-1,8-diazaspiro[4.5]decane-8-carboxylate Step 1: Preparation of ter -but l 8-form l-1,2,3,4-tetrah droisoquinoline-2-carboxylate A flask was charged with tert-butyl 8-bromo-1,2,3,4-tetrahydroisoquinoline-2-carboxylate (3.11 g, 9.93 mmol, 1.00 equiv) and THF (50 mL) under nitrogen. The reaction mixture was cooled to?78 ^C and n-butyllithium (2.5 M in hexane, 6 mL, 15.1 mmol, 1.50 equiv) was added dropwise. The reaction mixture was stirred at?78 ^C for 2 h, then DMF (1.46 g, 19.9 mmol, 2.00 equiv) was added dropwise. The resulting solution was stirred for 2 h at?78 ^C, quenched with aq. NH4Cl (10 mL) and diluted with EtOAc (100 mL). The mixture was washed with H2O (3 x 100 mL), dried over anhydrous Na2SO4, filtered, and concentrated. The residue was purified on a silica gel column (1:5 EtOAc/petroleum ether) to provide 1.81 g (69percent yield) of tert-butyl 8-formyl-1,2,3,4- tetrahydroisoquinoline-2-carboxylate as a yellow solid. LCMS (ESI, m/z): 262 [M+H]+.

893566-75-1 Tert-butyl 8-bromo-3,4-dihydroisoquinoline-2(1H)-carboxylate 59463272, aisoquinoline compound, is more and more widely used in various fields.

Reference£º
Patent; ABIDE THERAPEUTICS, INC.; BUZARD, Daniel J.; SHAGHAFI, Michael B.; CISAR, Justin S.; GRICE, Cheryl A.; JONES, Todd K.; WEBER, Olivia D.; (277 pag.)WO2017/197192; (2017); 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

To a suspension of 6-bromoisoquinoline (624 mg, 3.0 mmol) and Pd(PPh3)4 (173 mg, 0.15 mmol) in DMF (6 mL) was added Zn(CN)2 (210 mg, 1.8 mmol), and the reaction mixture was stirred at 90 C under N2 for 24 h. After cooling to room temperature, H2O (40 mL) was added and the mixture was extracted with ethyl acetate (40 mL x 3). The combined organic layers were washed with brine (30 mL x 3) and dried over Na2SO4. After concentration and purification by column chromatography (petroleum ether/ethylacetate = 3:1), 55 was obtained as a white solid (360 mg, 78%). 1H NMR (400 MHz, CDCl3) d 9.37 (s, 1H), 8.70 (d, J = 5.6 Hz, 1H),8.25 (s, 1H), 8.10 (d, J = 8.4 Hz, 1H), 7.77 (d, J = 8.4 Hz, 1H), 7.73(d, J = 5.6 Hz, 1H)., 34784-05-9

The synthetic route of 34784-05-9 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Xu, Zhixiang; Xu, Xiangxiang; O’Laoi, Ruadhan; Ma, Haikuo; Zheng, Jiyue; Chen, Shuaishuai; Luo, Lusong; Hu, Zhilin; He, Sudan; Li, Jiajun; Zhang, Hongjian; Zhang, Xiaohu; Bioorganic and Medicinal Chemistry; vol. 24; 22; (2016); p. 5861 – 5872;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

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.

Step A: Ethylene glycol dimethyl ether (20 mL) and 2 N Na2CO3 (12.2 mL) were sparged with N2 and charged to a round bottom flask containing 4-bromoisoquinoline (2 g, 9.6 mmol), phenylboronic acid (1.76 g, 14.4 mmol), and Pd(PPh3)4 (1.11 g, 0.96 mmol). The entire solution was sparged with N2. The resulting reaction mixture was heated to reflux under N2 overnight. The solution was cooled, quenched with saturated NaHCO3 (230 mL), and extracted five times with ethyl ether. The combined organic was dried over Na2SO4, filtered, and the solvent was removed in vacuo to yield an orange oil. Column chromatography (1:1 ethyl acetate/hexanes) afforded the pure isoquinoline as a yellow oil which crystallized upon refrigeration (2.21 g). 1H NMR (300 MHz, CDCl3) delta 9.29 (s, 1H), 8.52 (s, 1H), 8.04 (d, 1H, J=8.4 Hz), 7.91 (d, 1H, J=8.1 Hz), 7.66 (m, 2H), 7.46 (m, 5H).

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; Molino, Bruce F.; Berkowitz, Barry; Cohen, Marlene; US2006/111393; (2006); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

1532-97-4, 4-Bromoisoquinoline is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: Heterocycle (0.10mmol, 1 equiv)ammonium persulfate (0.20 mmol, 2equiv),[Ir{dF(CF3ppy)}2(dtbbpy)]PF6 ( 0.2 mol%),alpha-keto acids(1.0mmol10equiv)wereplaced in a dry glass tube.Then, anhydrous DMSO1mLwereinjected into the tubeby syringe under a N2 atmosphere.The solution was then stirred at roomtemperatureunder the irradiation of 15W blue LEDs strip for 12h.After completion of thereaction,then saturated Na2CO3solution was added to adjust pH to basic.Thecombined organic layer was washed with brine and then dried overanhydrousNa2SO4.The desired products were obtained in thecorresponding yields afterpurification by flashchromatography on silica gel eluting with petroleum andethylacetate., 1532-97-4

1532-97-4 4-Bromoisoquinoline 73743, aisoquinoline compound, is more and more widely used in various fields.

Reference£º
Article; Jia, Wei; Jian, Yong; Huang, Binbin; Yang, Chao; Xia, Wujiong; Synlett; vol. 29; 14; (2018); p. 1881 – 1886;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.679433-91-1,5-Bromo-8-methoxyisoquinoline,as a common compound, the synthetic route is as follows.,679433-91-1

5-bromo-8-methoxyisoquinoline (56 mg, 0.235 mmol), N-(6-(4,4,5,5-tetramethyl-l,3,2- dioxaborolan-2-yl)naphthalen-2-yl)thiophene-3-carboxamide (~100 mg), Fibercat palladium catalyst (Johnson-Matthey, 10 mg), and K2CO3 (2 M in water, 0.25 ml, 0.5 mmol) were combined in a microwave reaction vessel and 1,4-dioxane (2 ml) was added. The reaction tube was sealed and heated in the microwave (CEM microwave) at 150 Watts and 100 C for 10 minutes. The reaction was cooled to room temperature and diluted with water and dichloromethane. The organic extracts were combined, dried over sodium sulfate, filtered, concentrated, and purified two times using the ISCO purification system (40 g column, 0 -> 5% MeOH / CH2Cl2) and one time using Varian prep HPLC (1% -95% MeCN / water with 0.1% TFA over 70 minutes) to afford title compound (5 mg, 5%) contaminated with EPO about 2 mg of the corresponding phenol. MS (ESI pos. ion) m/z: 452 (M+H). Calc’d Exact Mass for C28H22FN3O2: 451.

The synthetic route of 679433-91-1 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; AMGEN INC.; WO2007/5668; (2007); A2;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

147497-32-3, 6-Bromo-3,4-dihydroisoquinolin-1(2H)-one is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

To a round bottomed flask charged with 6-Bromo-3,4-dihydro-2H-isoquinolin-l-one (16.9 g, 74.7 mmol), cyclopropylboronic acid (9.45 g, 1.5 equiv), tricyclohexylphosphine (1.04 mg, 0.025 equiv), and K3PO4 hexahydrate (50 g, 2 equiv) in toluene (210 mL) and H2O (15 mL) was added Pd(OAc)2 (100 mg, 0.05 equiv). The combined mixture was heated for 4 h at 100 0C. The reaction mixture was cooled, filtered and washed with toluene. The organic phase was parti- tioned and washed with water and brine, dried over Na2SO4, filtered and concentrated to an oil. Addition of hexanes produced 6-Cyclopropyl-3,4-dihydro-2H-isoquinolin-l-one as a tan solid (13.6 g). MS (ESI) 187.1 (M + H)+., 147497-32-3

147497-32-3 6-Bromo-3,4-dihydroisoquinolin-1(2H)-one 21865450, aisoquinoline compound, is more and more widely used in various fields.

Reference£º
Patent; F. HOFFMANN-LA ROCHE AG; WO2009/98144; (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.852570-80-0,5-Bromoisoquinolin-1-amine,as a common compound, the synthetic route is as follows.,852570-80-0

General procedure: Step 1: A glass vial was charged with corresponding bromo-heteroaryl compound (0.20mmol, 1eq), potassium metabisulfite (88mg, 0.40mmol, 2eq), tetrabutylammonium bromide (70mg, 0.22mmol, 1.1eq), sodium formate (15mg, 0.22mmol, 1.1eq), palladium(II) acetate (5mg, 0.02mmol, 0.1eq), triphenylphosphine (16mg, 0.06mmol, 0.3eq), 1,10-phenanthroline (11mg, 0.06mmol, 0.3eq). After sealing, the vial was flushed with argon for 30min and the reagents were suspended in dry, degassed DMSO (1mL) and the reaction mixture was stirred for 4h at 70C. After cooling to RT N,N-Diisopropylethylamine (70muL, 0.40mmol, 2eq) and a solution of tert-butyl (E)-(2-aminoethyl)(3-(4-(pyridin-3-yl)phenyl)allyl)carbamate (63) (106mg, 0.30mmol, 1.5eq) in dry THF (1mL) were added and the reaction mixture was cooled to 0C. Subsequently a solution of N-bromosuccinimide (62mg, 0.40mmol, 2eq) in dry THF (1mL) was added and the reaction mixture was allowed to come to RT. After stirring for 1h the reaction was quenched by adding H2O (1mL) and brine (2mL). The resulting mixture was extracted with EtOAc. The combined organic layers were dried over Na2SO4, filtered and the solvent removed under reduced pressure. The residue was purified via flash-column-chromatography (SiO2, 0% to 5% MeOH in DCM) to yield the desired Boc-protected product, which was used directly in step 2.

852570-80-0 5-Bromoisoquinolin-1-amine 33778566, aisoquinoline compound, is more and more widely used in various fields.

Reference£º
Article; Grimm, Sebastian H.; Gagestein, Berend; Keijzer, Jordi F.; Liu, Nora; Wijdeven, Ruud H.; Lenselink, Eelke B.; Tuin, Adriaan W.; van den Nieuwendijk, Adrianus M.C.H.; van Westen, Gerard J.P.; van Boeckel, Constant A.A.; Overkleeft, Herman S.; Neefjes, Jacques; van der Stelt, Mario; Bioorganic and Medicinal Chemistry; vol. 27; 5; (2019); p. 692 – 699;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem