Month: August 2020

27655-40-9, Isoquinoline-5-sulfonic acid is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Weigh 5g of raw materials A (5-sulfoisoquinoline), placed in 50ml round bottom flask, followed by adding 0.5ml DMF, 25ml of sodium sulfoxide, 80 C reflux reaction 3h. To room temperature, evaporated under reduced pressure of sodium sulfoxide and DMF,Add 20ml of ethyl acetate dissolved, filtered,Ethyl acetate solvent was evaporated to dryness to give the intermediate product B (5- isoquinoline sulfonyl chloride).

27655-40-9 Isoquinoline-5-sulfonic acid 241599, aisoquinoline compound, is more and more widely used in various.

Reference£º
Patent; Shanxi Curecell Biotechnology Co., Ltd.; Li, Xuechun; (14 pag.)CN106146467; (2016); A;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.6624-49-3,Isoquinoline-3-carboxylic acid,as a common compound, the synthetic route is as follows.

General procedure: At 0 ¡ãC and with stirring to the solution of 865 mg (5.0 mmol) of isoquinoline-3-carboxylic acid in 10 ml of anhydrous THF 675 mg (5.0 mmol) of HOBt was added to form reaction mixture A. The solution of 5.5 mmol of l-amino acid benzylester in 5 ml of anhydrous THF was adjusted pH 9 with triethylamine and stirred for 30 min to form mixture B. At 0 ¡ãC the mixtures A and B were mixed and then 1339 mg (6.5 mmol) of DCC was added. The reaction mixture was stirred at 0 ¡ãC for 2 h, at room temperature for12 h and TLC (ethyl acetate/petroleum ether, 1:2) indicated the complete disappearance of isoquinoline-3-carboxylic acid. The formed precipitates of DCU were removed by filtration and the filtrate was evaporated under vacumm. The residue was dissolved in 50 ml of ethyl acetate and the formed solution was washed successively with saturated aqueous solution of NaHCO3 (30 ml .x. 3), 5percent aqueous solution of KHSO4 (30 ml .x. 3) and saturated aqueous solution of NaCl (30 ml .x. 3) and dried over anhydrous Na2SO4. After filtration the filtrate was evaporated under vacumm and the residure was purified on silica gel chromatography (CHCl3:MeOH, 20:1) to give the title compounds.

As the paragraph descriping shows that 6624-49-3 is playing an increasingly important role.

Reference£º
Article; Zheng, Meiqing; Yang, Yifan; Zhao, Ming; Zhang, Xiaoyi; Wu, Jianhui; Chen, Gong; Peng, Li; Wang, Yuji; Peng, Shiqi; European Journal of Medicinal Chemistry; vol. 46; 5; (2011); p. 1672 – 1681;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.6624-49-3,Isoquinoline-3-carboxylic acid,as a common compound, the synthetic route is as follows.

General procedure: The tail group containing dimer or trimer (0.266 mmol) wasdissolved in methanol (25 mL), to which Pd/C-10percent (60 mg) wasadded at 0 C under nitrogen with stirring. The reaction mixturewas hydrogenated at room temperature and atmospheric pressurefor 4 h. The catalyst was removed over Kieselguhr and the solventwas removed under reduced pressure to give the amine, which wasdissolved in DMF (1 mL, dry). The appropriate head group carboxylic acid (0.266 mmol) was dissolved in DMF (1 mL, dry) towhich HBTU (260 mg, 0.685 mmol) and triethylamine (50 mL) wereadded to the reaction mixture at room temperature with stirringand the reaction mixture was left standing at room temperatureovernight. The product was purified by HPLC (no work up required).Fractions containing the product were collected and freeze dried togive the required product.

The synthetic route of 6624-49-3 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Scott, Fraser J.; Khalaf, Abedawn I.; Giordani, Federica; Wong, Pui Ee; Duffy, Sandra; Barrett, Michael; Avery, Vicky M.; Suckling, Colin J.; European Journal of Medicinal Chemistry; vol. 116; (2016); p. 116 – 125;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

6624-49-3, Isoquinoline-3-carboxylic acid is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

A mixture of isoquinoline-3-carboxylic acid monohydrate (63 g, 0.364 mol) and Na2SO4 (10 g) in dry DMF (200 mL) was treated with DIEA (76 mL, 0.44 mol). The reaction mixture was stirred at rt for 20 min and cooled to 0¡ã C. followed by drop wise addition of Intermediate 17 (147 g, 0.36 mol) in DMF (200 ml). The mixture was stirred for 2 h at 0¡ã C. and then diluted with ice water and filtered. The collected solid was washed with water then dissolved in EtOAc. The organic phase was washed with saturated aqueous NaHCO3, then water, dried over Na2SO4 and concentrated. Hexane trituration afforded Intermediate 18 (155 g) (Isoquinoline-3-carboxylic acid 2-{3-[(R)-1-(4-fluoro-phenyl)-ethylcarbamoyl]-5-nitro-phenyl}-2-oxo-ethyl ester) as a white solid. 1H NMR (CDCl3): delta 9.34(1H), 8.68(1H), 8.08(2H), 8.01(1H), 7.80(2H), 7.75 (2H), 7.36(2H), 7.04(2H), 6.72(1H), 5.70(2H), 5.32(1H), 1.61(3H) ppm. LC/MS: m/z 503 (M+2)+

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Reference£º
Patent; Mjalli, Adnan M.M.; Cooper, Jeremy T.; Arimilli, Murty N.; Andrews, Robert C.; Rothlein, Robert; AlTel, Taleb H.; US2007/219239; (2007); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

1075-12-3, 7-Fluoroisoquinoline is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: Dimethylsulfamoyl chloride (34; 0.144 mL, 1.34 mmol) was added to a solution of isoquinoline (5; 157 mg, 1.22 mmol) and 1H-indol-7-yl acetate (33; 213 mg, 1.22 mmol) in toluene (4 mL) at r.t. The mixture was concentrated to a thick but stirrable paste (1.5 mL), which was stirred at 50 C for 3 h. TLC and LCMS showed reaction was largely complete by this time. The mixture was diluted with EtOAc (40 mL), washed with H2O (40 mL) and sat. brine (20 mL), dried (Na2SO4), filtered and evaporated to dryness. The residue was purified by flash silica gel chromatography (loading in CH2Cl2) (eluent: gradient 20 to 50% EtOAc in heptane). Fractions containing the desired product were evaporated to afford the title compound 37a (208 mg, 42%) as a white solid

The synthetic route of 1075-12-3 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Pearson, Stuart E.; Fillery, Shaun M.; Goldberg, Kristin; Demeritt, Julie E.; Eden, Jonathan; Finlayson, Jonathan; Patel, Anil; Synthesis; vol. 50; 24; (2018); p. 4963 – 4981;,
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

In general, the 6-fluoro and 6-alkyl isoquinolines used in the following experiments were prepared via a Pomeranz-Fritsch synthesis (Typical procedure: Preparation of optically active 8,8-disubstituted 1, 1-biisoquinoline, K.Hirao, R. Tsuchiya, Y. Yano, H. Tsue, Heterocycles 42(1) 1996,415-422) as outlined below. The products were converted into the 1-chloro derivatives via N-oxide intermediates as described elsewhere. General Synthetic Scheme EMI271.1Reagents and reaction conditions: (a) reflux in benzene, azeotropic removal of water; (b) first step: ethyl chloroformate, trimethyl phosphite in THF, second step: titanium tetrachloride in chloroform; (c) MCPBA inCH2CI2 ; (d) POCl3 in benzene

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

Reference£º
Patent; BRISTOL-MYERS SQUIBB COMPANY; WO2003/99274; (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.1075-11-2,6-Fluoroisoquinoline,as a common compound, the synthetic route is as follows.

Example 13 1-chloro-6-fluoro-isoquinoline; To a solution of 6-fluoroisoquinoline (2.64 g, 17.9 mmol) in CH2Cl2 (70 mL) cooled at 0 C., MCPBA is added (3.4 g, 19.69 mmol). The reaction mixture is stirred at RT for 16 h. After 1 h of stirring, a yellow white precipitate forms. The solvent is evaporated under reduced pressure. To the yellow solid is added CH2Cl2 (5 mL), and the solid is isolated by vacuum filtration. Rinsing the solid with CH2Cl2 yields a white solid, which is dried under vacuum to afford 3 g (100%) of 6-fluoro-isoquinoline N-oxide.

1075-11-2 6-Fluoroisoquinoline 21889847, aisoquinoline compound, is more and more widely used in various.

Reference£º
Patent; Huang, Kenneth He; Veal, James; Barta, Thomas; Smith, Emilie D.; Ma, Wei; Ommen, Andy; US2008/70935; (2008); A1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

491-30-5, 1-Hydroxyisoquinoline is a isoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

A mixture of 2.90 g, 19.07 mMol of isocarbostyril and 14.40 g, 33.68 mMol of phosphorus pentabromide were allowed to melt together at 140 C. The melt turned into a red liquid and after about 10 minutes the reaction mixture solidified and was cooled. The reaction mixture was crushed up and dumped into ice water. The resulting solid was filtered and air-dried. wt. 5.50 g, 96% yield, mp.=94-96. Rf=0.66 in 40% ethyl acetate in hexanes.

As the paragraph descriping shows that 491-30-5 is playing an increasingly important role.

Reference£º
Patent; Bayer Pharmaceuticals Corporation; US6689883; (2004); 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.119-65-3,Isoquinoline,as a common compound, the synthetic route is as follows.

General procedure: To an 8 mL dram vial was added iodobenzene diacetate (0.6 mmol, 1.5 equiv), and heteroarene(0.4 mmol, 1 eq.), anhydrous dichloroethane (1 mL), then chloride source (5 equiv). The solutionwas allowed to stir (1000 rpm) at 50 C for the indicated amount of time. After which the solutionwas washed with saturated sodium bicarbonate, followed by saturated sodium thiosulfate andconcentrated. The crude mixture was then purified by column chromatography.

As the paragraph descriping shows that 119-65-3 is playing an increasingly important role.

Reference£º
Article; Fosu, Stacy C.; Hambira, Chido M.; Chen, Andrew D.; Fuchs, James R.; Nagib, David A.; Chem; vol. 5; 2; (2019); p. 417 – 428;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.119-65-3,Isoquinoline,as a common compound, the synthetic route is as follows.

5-Bromo-8-nitroisoquinoline. Isoquinoline (15 ml; 128 mmol) was slowly added to a mechanically stirred solution of concentrated H2SO4 (130 ml) (Note 1) at -20 C., at such a speed that the temperature did not exceed +8 C. The reaction mixture was then re-cooled to -20 C., and solid N-bromosuccinimide (27.29 g; 153 mmol) (Note 2 and 3) was added at such a speed that the reaction temperature did not exceed -15 C. (Note 4). The reaction mixture was stirred at -20 C. until all isoquinoline was consumed (Note 5). Solid KNO3 (13 g; 128 mmol) was added in one portion, whereby the reaction temperature warmed up to -12 C. to -10 C. The reaction was stirred at -10 C. to -20 C. for 2 hours and then allowed to warm up to rt. The reaction mixture was poured onto 650 g of crushed ice and pH adjusted to 7.0 (Note 6) using 25% NH3 (aq.), while the temperature was kept below +30 C. The mixture was left for precipitation for 1 h at rt. The yellow precipitate was isolated by filtration, washed on the filter with H2O (3*500 ml) and then dried by suction followed by air drying to give 27.1 g crude product. (Note 7).

As the paragraph descriping shows that 119-65-3 is playing an increasingly important role.

Reference£º
Patent; NeuroSearch A/S; US6500954; (2002); B1;,
Isoquinoline – Wikipedia
Isoquinoline | C9H7N – PubChem