New downstream synthetic route of 5H-Cyclopenta[b]pyridin-7(6H)-one

The synthetic route of 31170-78-2 has been constantly updated, and we look forward to future research findings.

Adding a certain compound to certain chemical reactions, such as: 31170-78-2, 5H-Cyclopenta[b]pyridin-7(6H)-one, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound, Recommanded Product: 5H-Cyclopenta[b]pyridin-7(6H)-one, blongs to pyridine-derivatives compound. Recommanded Product: 5H-Cyclopenta[b]pyridin-7(6H)-one

5,6-Dihydro-[1]pyrindin-7-one O-methyl-oxime: Methoxylamine hydrochloride (6.20 g, 74.23 mmol) was added to a solution of 5,6-dihydro-[1]pyrindin-7-one (4.96 g, 37.25 mmol) in MeOH and triethylamine (10.4 mL, 74.62 mmol) was added. After refluxing overnight, the reaction mixture was cooled to room temperature and extracted with EtOAc (3×200 mL). The combined organic extracts were washed with H2O (3×200 mL), brine (1×200 mL), dried over MgSO4 and concentrated. Purification by column chromatography using hex: Et2O (4:1) as the eluant afforded 4.10 g (68% yield) of the title oxime.31 g (96.5% yield) of the title compound. Spectroscopic data: 1H NMR (300 MHz, CDCl3) delta 2.90-2.96 (m, 2H), 2.99-3.07 (m, 2H), 4.08 (s, 3H), 7.21 (q, J=4.69, 2.93 Hz, 1H), 7.63 (d, J=7.92 Hz, 1H), 8.55 (d, J=4.69 Hz, 1H).

The synthetic route of 31170-78-2 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Allergan, Inc.; US2008/255239; (2008); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem