Category: 1122-10-7

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.1122-10-7,3,4-Dibromo-1H-pyrrole-2,5-dione,as a common compound, the synthetic route is as follows.

To a stirred solution of 2,3-dibromomaleimide 3 [32] (255 mg, 1.0 mmol) in CH2Cl2 (20 mL)Et3N (279mL, 2.0 mmol) and n-butyl-mercaptan (226 ml, 2.1 mmol)were added under an argon atmosphere and stirred for 3 h at roomtemperature. The reaction mixture was evaporated, and the crudeproduct was purified by flash chromatography (hexanes:acetone 9:1) to give the desired compound 5a (243 mg, 89%)as a yellow powder. 1H NMR (400 MHz, CDCl3): d 8.07 (s, 1H, NH),3.29 (t, J 7.3 Hz, 4H, 2 x S-CH2), 1.69e1.58 (m, 4H), 1.52e1.35 (m,4H), 0.93 (t, J 7.3 Hz, 6H, 2 x CH3). 13C NMR (101 MHz, CDCl3):d 166.7 (2C, 2x CO); 136.8 (CC); 32.6, 31.6, 21.7 (6C, 6x CH2); 13.7(2C, 2x CH3). MS (ESI): m/z calculated for C12H19NO2S2 Na[M Na]: 296.075. Found: 296.073.

1122-10-7, As the paragraph descriping shows that 1122-10-7 is playing an increasingly important role.

Reference£º
Article; Sz?cs, Zsolt; Kelemen, Viktor; Le Thai, Son; Csavas, Magdolna; R?th, Erzsebet; Batta, Gyula; Stevaert, Annelies; Vanderlinden, Evelien; Naesens, Lieve; Herczegh, Pal; Borbas, Aniko; European Journal of Medicinal Chemistry; vol. 157; (2018); p. 1017 – 1030;,
Pyrroline – Wikipedia
1-Pyrroline | C4H7N – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.1122-10-7,3,4-Dibromo-1H-pyrrole-2,5-dione,as a common compound, the synthetic route is as follows.

General procedure: To a solution of 3,4-dibromomaleimide(1.00 g,3.90 mmol) and N-methylmorpholine (0.43mL, 3.90 mmol) in THF (35 mL), methylchloroformate (0.30 mL, 3.90 mmol) wasadded and the mixture was stirred for 20 min at room temperature. Then DCM (40mL) was added, the organic phase was washed with H2O, dried overMgSO4 and the solvent removed invacuo to yield the title product 6 asa pink power (1.18 g,3.80 mmol, 97%). m.p. 115-118 C; nmax (cm-1) 3236, 2962, 1809, 1769, 1730, 1602; dH (CDCl3, 500MHz) 4.00 (3H, s, CH3); dC (CDCl3, 125 MHz) 159.3 (s), 147.0 (s), 131.5 (s), 54.9 (q); HRMS (ES): Mass calculated for C6H3O4Br2N310.8423, observed: 310.8427

1122-10-7, The synthetic route of 1122-10-7 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Castaneda, Lourdes; Wright, Zoe V.F.; Marculescu, Cristina; Tran, Trang M.; Chudasama, Vijay; Maruani, Antoine; Hull, Elizabeth A.; Nunes, Joao P.M.; Fitzmaurice, Richard J.; Smith, Mark E.B.; Jones, Lyn H.; Caddick, Stephen; Baker, James R.; Tetrahedron Letters; vol. 54; 27; (2013); p. 3493 – 3495;,
Pyrroline – Wikipedia
1-Pyrroline | C4H7N – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.1122-10-7,3,4-Dibromo-1H-pyrrole-2,5-dione,as a common compound, the synthetic route is as follows.

General procedure: (Indolin-3-yl)ethanole 2a (1.700 g, 10.4 mmol) and Et(iPr)2N(3.5 mL, 20 mmol) were added to solution of 3,4-dibrommalemide 1 (2.540 g, 10 mmol) in dry DMF (5 mL). The reaction mixture was left to stir overnight at 50 C. The cooled to rt reaction mixture was diluted with EtOAc (100 mL), washed with water (200 mL), brine (50 mL), dried, and evaporated. The residue was chromatographed (33.3% EtOAc/petroleum ether) to give 4a as a red amorphous solid (2.642 g, 7.8 mmol, 80%), 1122-10-7

The synthetic route of 1122-10-7 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Simonov, Alexander Y.; Bykov, Evgeny E.; Lakatosh, Sergey A.; Luzikov, Yury N.; Korolev, Alexander M.; Reznikova, Marina I.; Preobrazhenskaya, Maria N.; Tetrahedron; vol. 70; 3; (2014); p. 625 – 630;,
Pyrroline – Wikipedia
1-Pyrroline | C4H7N – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.1122-10-7,3,4-Dibromo-1H-pyrrole-2,5-dione,as a common compound, the synthetic route is as follows.

General procedure: To a stirred solution of 2,3-dibromomaleimide23 (1.0 mmol) in CH2Cl2 (20ml) Et3N (2.0mmol) and thiol (2.1mmol) were added under argon atmosphere and stirred for 3 h at room temperature. The reaction mixture was evaporated,and the crude product was purified by flash chromatography to give the desired compound.

1122-10-7, 1122-10-7 3,4-Dibromo-1H-pyrrole-2,5-dione 14279, apyrrolines compound, is more and more widely used in various fields.

Reference£º
Article; Csavas, Magdolna; Miskovics, Adrienn; Szcs, Zsolt; Rth, Erzsebet; Nagy, Zsolt L; Bereczki, Ilona; Herczeg, Mihaly; Batta, Gyula; Nemes-Nikodem, Eva; Ostorhazi, Eszter; Rozgonyi, Ferenc; Borbas, Aniko; Herczegh, Pal; Journal of Antibiotics; vol. 68; 9; (2015); p. 579 – 585;,
Pyrroline – Wikipedia
1-Pyrroline | C4H7N – PubChem

1122-10-7, 3,4-Dibromo-1H-pyrrole-2,5-dione is a pyrrolines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: To a stirred solution of 2,3-dibromomaleimide23 (1.0 mmol) in CH2Cl2 (20ml) Et3N (2.0mmol) and thiol (2.1mmol) were added under argon atmosphere and stirred for 3 h at room temperature. The reaction mixture was evaporated,and the crude product was purified by flash chromatography to give the desired compound., 1122-10-7

The synthetic route of 1122-10-7 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Csavas, Magdolna; Miskovics, Adrienn; Szcs, Zsolt; Rth, Erzsebet; Nagy, Zsolt L; Bereczki, Ilona; Herczeg, Mihaly; Batta, Gyula; Nemes-Nikodem, Eva; Ostorhazi, Eszter; Rozgonyi, Ferenc; Borbas, Aniko; Herczegh, Pal; Journal of Antibiotics; vol. 68; 9; (2015); p. 579 – 585;,
Pyrroline – Wikipedia
1-Pyrroline | C4H7N – PubChem

1122-10-7, 3,4-Dibromo-1H-pyrrole-2,5-dione is a pyrrolines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Synthesis of analogue 2 was undertaken following the procedure of Baker et al.2 Purified amylin-(1-8) (9) (10.0 mg, 12.4 x 10-3 mmol) was dissolved in a deoxygenated mixture of acetonitrile (12.0 mL) and 250 mM potassium phosphate buffer (24.0 mL, pH 7) and was further deoxygenated for 30 min (argon). 2,3-Dibromomaleimide (3.46 mg, 13.59 x 10-3 mmol) was then added and the resulting yellow mixture was stirred at room temperature for 30 min under argon during which time all the starting material had disappeared as judged by analytical RP-HPLC (Figure S 5). Crude product 2 was lyophilised and purified by RP-HPLC on a preparative Waters XTerra Prep. C18 column at a flow rate of 10 mL/min, using a linear gradient of 1%B to 36%B over 23 min (ca. 1.5%B per minute). Fractions were lyophilised to give the title compound 2 as a white amorphous solid (1.7 mg, 15%)., 1122-10-7

The synthetic route of 1122-10-7 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Kowalczyk, Renata; Harris, Paul W.R.; Brimble, Margaret A.; Callon, Karen E.; Watson, Maureen; Cornish, Jillian; Bioorganic and Medicinal Chemistry; vol. 20; 8; (2012); p. 2661 – 2668;,
Pyrroline – Wikipedia
1-Pyrroline | C4H7N – PubChem

1122-10-7, 3,4-Dibromo-1H-pyrrole-2,5-dione is a pyrrolines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

To an oven-dried 250 ml round bottom flask of dibromomaleimide (DBM) (1.001 g, 3.93mmol), dry methanol (25.0 mL) was added. The solution was allowed to stir at 40 C under N2 gas. In another flask, an anhydrous solution of trifluoromethylbenzyl mercaptan (3.18 g, 16.57 mmol), TCEP (0.50 g, 1.24 mmol), and sodium acetate (1.31 g, 15.99 mmol) in dry methanol (25.0 mL) was added in 6.25 mL increments to the flask with DBM every 30 minutes under anhydrous conditions at 40 C. The reaction mixture was stirred for 4 hours. The solvents were removed in vacuo. The crude product was dissolved in dichloromethane to vacuum filtrate product of sodium acetate and solution was dried in vacuo. The crude product was purified via column chromatography and dried in vacuo to yield intermediate product (1) as a yellow powder (0.918 g, 1.92 mmol, 49%). Rf data (9:1DCM/hexanes) 0.32; 1H NMR (400 MHz CDCl3) delta data 7.63 (4H, d, CH), 7.56 (4H, d, CH), 4.49 (4H, s, CH); 13CNMR (500 MHz CDCl3) delta data 165.7, 140.7, 136.5, 129.2, 129.2, 129.2, 129.2, 125.7, 35.4; HRMS calcd forC20H12F6NO2S2 (M-) 476.0219, found: 476.0214.

1122-10-7, 1122-10-7 3,4-Dibromo-1H-pyrrole-2,5-dione 14279, apyrrolines compound, is more and more widely used in various fields.

Reference£º
Letter; Hidalgo, Francisco J.; Lorentz, Nathan A. P.; Luu, Tintin B.; Tran, Jonathan D.; Wickremasinghe, Praveen D.; Martini, Olnita; Iovine, Peter M.; Schellinger, Joan G.; Letters in Organic Chemistry; vol. 17; 2; (2020); p. 85 – 89;,
Pyrroline – Wikipedia
1-Pyrroline | C4H7N – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.1122-10-7,3,4-Dibromo-1H-pyrrole-2,5-dione,as a common compound, the synthetic route is as follows.

General procedure: To the solution of dibromomaleimide 1a orN-methyldibromomaleimide 1b (1 mmol) in THF (20 ml)was added solution of the thiophenol (2.2 mmol) and triethylamine(2.2 mmol) in one portion. The resulting solutionwas stirred at room temperature for 1 h, then evaporated invacuo and the residue was redissolved in ethyl acetate-water(20 + 20 ml) mixture. The organic layer was separated,washed with aq. NaHCO3, dried over anhydrous Na2SO4and evaporated. The residue was purified by flash chromatography(ethyl acetate: petroleum ether 3:1)., 1122-10-7

1122-10-7 3,4-Dibromo-1H-pyrrole-2,5-dione 14279, apyrrolines compound, is more and more widely used in various fields.

Reference£º
Article; Panov, Alexey A.; Lavrenov, Sergey N.; Simonov, Alexander Y.; Mirchink, Elena P.; Isakova, Elena B.; Trenin, Alexey S.; Journal of Antibiotics; vol. 72; 2; (2019); p. 122 – 124;,
Pyrroline – Wikipedia
1-Pyrroline | C4H7N – PubChem

1122-10-7, 3,4-Dibromo-1H-pyrrole-2,5-dione is a pyrrolines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: To the solution of dibromomaleimide 1a orN-methyldibromomaleimide 1b (1 mmol) in THF (20 ml)was added solution of the thiophenol (2.2 mmol) and triethylamine(2.2 mmol) in one portion. The resulting solutionwas stirred at room temperature for 1 h, then evaporated invacuo and the residue was redissolved in ethyl acetate-water(20 + 20 ml) mixture. The organic layer was separated,washed with aq. NaHCO3, dried over anhydrous Na2SO4and evaporated. The residue was purified by flash chromatography(ethyl acetate: petroleum ether 3:1).

1122-10-7, As the paragraph descriping shows that 1122-10-7 is playing an increasingly important role.

Reference£º
Article; Panov, Alexey A.; Lavrenov, Sergey N.; Simonov, Alexander Y.; Mirchink, Elena P.; Isakova, Elena B.; Trenin, Alexey S.; Journal of Antibiotics; vol. 72; 2; (2019); p. 122 – 124;,
Pyrroline – Wikipedia
1-Pyrroline | C4H7N – PubChem

1122-10-7, 3,4-Dibromo-1H-pyrrole-2,5-dione is a pyrrolines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Reference Example 17 Preparation of 3,4-Diiodo-pyrrole-2,5-dione To dibromomaleimide (500.0 mg, 2.0 mmol) in acetic acid (50 ml) was added sodium iodide (886.5 mg, 5.9 mmol). The reaction mixture was heated to 120 C. and refluxed for 2 h. The reaction was allowed to cool down to RT, H2O (50 ml) was added and kept at 4 C. for 15 h. The yellow precipitate was filtered off and air dried to afford the desired compound as an orange crystalline powder (415 mg, 60%). 1H NMR (500 MHz, MeOD): no signals; 13C NMR (125 MHz, MeOD): delta=169.3 (C), 119.5 (C); IR (solid, cm-1): 3244 (s), 2944 (m), 2833 (m); MS (EI) m/z, (%): 349 (M, 83), 179 (100); Mass calc. for C4H12O2N: 348.80912. Found: 348.81026. m.p. 238-241 C. (Literature: 254-255 C.).

1122-10-7, The synthetic route of 1122-10-7 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; UCL Business Plc; Smith, Mark; Caddick, Stephen; Baker, James; Chudasama, Vijay; (80 pag.)US9295729; (2016); B2;,
Pyrroline – Wikipedia
1-Pyrroline | C4H7N – PubChem