Category: 55304-73-9

Electric Literature of 55304-73-9, With the rapid development and complex challenges of chemical substances, the synthesis of new drugs is usually one of the most effective ways to increase yield.55304-73-9, name is 2,6-Dichloro-3-formylpyridine, molecular formula is C6H3Cl2NO, molecular weight is 176, as common compound, the synthetic route is as follows.

Example 27 c. 2-((2,6-dichloropyridin-3-yl)methylamino)-l-(l,3-dimethyl-lH- pyrazol-5-yl)ethanol2,6-Dichloronicotinaldehyde (0.964 g, 5.48 mmol), 2-amino-l -(1,3 -dimethyl- lH-pyrazol- 5-yl)ethanol (0.810 g, 5.22 mmol) and acetic acid (0.149 ml, 2.61 mmol) in methanol (10 mL) was stirred at room temperature for 20 minutes. Methanol (15 mL) was added and cooled to 00C. Sodium cyanoborohydride (0.394 g, 6.26 mmol) was added and the reaction mixture was stirred at 00C for 10 minutes. The solvent was evaporated and the residue was partitioned between dichloromethane and sat. NaHCO3 (aq). The water layer was extracted twice with dichloromethane and the combined organic layer was dried (MgSO4) and concentrated. The crude product was purified by silica column chromatography using a gradient of methanol (0 to 5%) in dichloromethane giving 1.5O g of the title compound (91 % Yield). 1H NMR (500 MHz, DMSO-J6) delta ppm 7.99 (dd, 1 H), 7.52 – 7.63 (m, 1 H), 5.90 (s, 1 H), 5.37 (dt, 1 H), 4.63 – 4.76 (m, 1 H), 3.76 – 3.86 (m, 2 H), 3.65 – 3.75 (m, 3 H), 3.17 (dt, 1 H), 2.69 – 2.87 (m, 2 H), 2.01 – 2.16 (m, 3 H). MS m/z 315, 317, 319 [M+H] +.

Statistics shows that 55304-73-9 is playing an increasingly important role. we look forward to future research findings about 2,6-Dichloro-3-formylpyridine.

Reference:
Patent; ASTRAZENECA AB; LO-ALFREDSSON, Yvonne; PAULSEN, Kim; RAKOS, Laszlo; ROTTICCI, Didier; WALDMAN, Magnus; WO2010/132015; (2010); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Synthetic Route of 55304-73-9, Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps,and cheap raw materials. 55304-73-9, name is 2,6-Dichloro-3-formylpyridine. A new synthetic method of this compound is introduced below.

2,6-Dichloronicotinaldehyde (500 mg, 2.84 mmol) was diluted with dimethylamine (3125 muL, 6.25 mmol) and heated to 500C. After stirring for 3 hours, the reaction was loaded onto a silica gel column and eluted with 5% ethyl acetate/hexanes to 50% ethyl acetate/hexanes to yield 6-chloro-2-(dimethylamino)nicotinaldehyde (155 mg, 0.840 mmol, 29.6 % yield).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,55304-73-9, its application will become more common.

Reference:
Patent; ARRAY BIOPHARMA INC.; COOK, Adam; HUNT, Kevin, W.; DELISLE, Robert Kirk; ROMOFF, Todd; CLARK, Christopher, T.; KIM, Ganghyeok; CORRETTE, Christopher, P.; DOHERTY, George, A.; BURGESS, Laurence, E.; WO2010/75200; (2010); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem