Tag: 42923-79-5

42923-79-5, 7-Nitro-1,2,3,4-tetrahydroisoquinoline is a tetrahydroisoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

tert-Butyl 3,4-dihydro-7-nitroisoquinoline-2(1H)-carboxylate A mixture of 1,2,3,4-Tetrahydro-7-nitroisoquinoline (2.5 g, 11.6 mmol), 1,4-dioxane (24 mL), H2O (12 mL) and 1N NaOH (12 mL) was cooled in an ice-bath, and Boc2O (2.8 g, 12.8 mmol) was added. The mixture was stirred at room temperature for 2.5 h, acidified with a 5% KHSO4 solution to pH 2-3, and then extracted with EtOAc. The organic layer was dried over MgSO4 and concentrated to give tert-butyl 3,4-dihydro-7-nitroisoquinoline-2(1H)-carboxylate (3.3 g, quant.), which was used without further purification. 1H NMR (400 MHz, DMSO-d6) delta 8.13 (d, J=2.3 Hz, 1H), 8.03 (dd, J=8.4, 2.5 Hz, 1H), 7.45 (d, J=8.5 Hz, 1H), 4.63 (s, 2H), 3.60-3.57 (m, 2H), 2.90 (t, J=5.9 Hz, 2H), 1.44 (s, 9H); HPLC ret. time 3.51 min, 10-99% CH3CN, 5 min run; ESI-MS 279.2 m/z (MH+).

The synthetic route of 42923-79-5 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; Vertex Pharmaceuticals Incorported; US2011/98311; (2011); A1;,
Tetrahydroisoquinoline – Wikipedia
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.42923-79-5,7-Nitro-1,2,3,4-tetrahydroisoquinoline,as a common compound, the synthetic route is as follows.

2-Methanesulfonyl-l52,354-tetrahydro-isoquinolin-7-ylamine was prepared as follows: A solution of l5253,4-tetrahydro-isoquinolin-7-ylamine (1.255g)[ prepared from 1,2,3,4-tetrahydroisoquinoline according to J. Med. Chem., 2003, 46(5), pp831- 7.], NEt3 (l.lmL) and methanesulfonylchloride (0.6mL) in dry CH2Cl2 (2OmL) was stiired at R.T. overnight. Aqueous work-up followed by purification on silica gave 2- methanesulfonyl-7-nitro-l,25354-tetrahydro-isoquinoline (1.435g).

The synthetic route of 42923-79-5 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; LUDWIG INSTITUTE FOR CANCER RESEARCH; CANCER RESEARCH TECHNOLOGY LIMITED; INSTITUTE OF CANCER RESEARCH: ROYAL CANCER HOSPITAL; ASTELLAS PHARMA INC; PIRAMED LIMITED; WO2007/42806; (2007); A1;,
Tetrahydroisoquinoline – Wikipedia
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.42923-79-5,7-Nitro-1,2,3,4-tetrahydroisoquinoline,as a common compound, the synthetic route is as follows.

General procedure: A mixture of the required 1,2,3,4-tetrahydroisoquinoline derivative (1 equivalent), NaHCO3 (2 equivalents), and the appropriate substituted nitroaryl derivative or 2-chloro-3,5-dinitropyridine (1 equivalent) was heated at reflux in a mixture of ethanol : water (2:1) with stirring (15 hours). After cooling to room temperature, the ethanol was evaporated and the residue was poured onto ice yielding a solid. The solid was collected and dried in a vacuum desiccator over P2O5 giving the crude N-(nitroaryl)-1,2,3,4-tetrahydroisoquinoline derivative or 1,2,3,4-tetrahydro-2-(3,5-dinitropyridin-2-yl)isoquinoline 12.

The synthetic route of 42923-79-5 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Burke, Philip J.; Chun Wong, Lai; Jenkins, Terence C.; Knox, Richard J.; Stanforth, Stephen P.; Bioorganic and Medicinal Chemistry Letters; vol. 21; 24; (2011); p. 7447 – 7450;,
Tetrahydroisoquinoline – Wikipedia
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

42923-79-5, 7-Nitro-1,2,3,4-tetrahydroisoquinoline is a tetrahydroisoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

(5-1) The raw material 7-nitro-1,2,3,4-tetrahydroisoquinoline was prepared according to Heterocyclic Chemistry, 22, 329 (1985). 7-Nitro-1,2,3,4-tetrahydroisoquinoline (5.78 g) was dissolved in ethanol (400 ml), triethylamine (7.8 ml) and ethyl bromoacetate (4.5 g) were added, and the mixture was heated and refluxed for 1 hour. Most of the solvent was distilled off under reduced pressure, concentrated residue was extracted with ethyl acetate and the extracted solution was dried with anhydrous magnesium sulfate. The solvent distilled off under reduced pressure and the crude product obtained was purified by silica gel column chromatography using a solvent mixture, ethyl acetate:n-hexane=1:3, as a developer. The compound obtained was treated with a hydrochloric acid/dioxane solution to obtain ethyl 7-nitro-1,2,3,4-tetrahydro-isoquinoline-2-acetate hydrochloride (4.2 g).

42923-79-5 7-Nitro-1,2,3,4-tetrahydroisoquinoline 6424833, atetrahydroisoquinoline compound, is more and more widely used in various.

Reference£º
Patent; Mitsui Toatsu Chemicals, Inc.; US5719145; (1998); A;,
Tetrahydroisoquinoline – Wikipedia
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

42923-79-5, 7-Nitro-1,2,3,4-tetrahydroisoquinoline is a tetrahydroisoquinoline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

A mixture of 8 (5.4g, 26mmol), Et3N (9. 8mL, 70mmol) and acetic anhydride (5. 0ml, 51mmol) in CH2C12 (70mL) is stirred at reflux temperature for 1 hour, cooled, and the reaction mixture is poured onto ice. The resulting solution is extracted three times with methylene chloride. The organic layer is dried over sodium sulfate and evaporated in vacuo. The residue is chromatographed on flash silica gel to give 5.3g of 13 (94% YIELD). 1H NMR (300MHz, CDCl3) delta 8.05-8. 03 (2H, M, H-6,8), 7.43-7. 30 (1H, M, H-5), 4.83 (1.2H, s, ArCH2N), 4.72 (0.8H, s, ArCH2N), 3.87 (0.8H, t, ArCH2CH2N), 3.74 (1.2H, t, ArCH2CH2N), 3.02 (1.2H, t, ArCH2CH2N), 2.95 (0.8H, t, ArCH2CH2N), 2.21 (1.2H, s, COCH3), 2.20 (1.8H, s, COCH3).

42923-79-5 7-Nitro-1,2,3,4-tetrahydroisoquinoline 6424833, atetrahydroisoquinoline compound, is more and more widely used in various.

Reference£º
Patent; BUOLAMWINI, John, K,; WO2004/60902; (2004); A2;,
Tetrahydroisoquinoline – Wikipedia
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem