Brief introduction of 253-72-5

The synthetic route of 253-72-5 has been constantly updated, and we look forward to future research findings.

253-72-5, 1,6-Naphthyridine is a naphthyridine compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,253-72-5

2. 6-Benzyl-5,6,7,8-tetrahydro-1,6-naphthyridine 1,6-Naphthyridine (13.7 g, 105 mmol) and benzyl bromide (36.05 g, 210 mmol) were combined in acetonitrile (200 ml) and heated to reflux until no 1,6-naphthyridine was visible by thin layer chromatography. After removal of the solvent in vacuo, the residue was washed several times with ether and dissolved in methanol (700 ml). Water (250 ml) was added, and the solution cooled to 0¡ã; portionwise addition of sodium borohydride (20.8 g, 550 mmol) brought about vigorous gas evolution and a slight rise in temperature. The reaction mixture was allowed to warm to room temperature and stir for 18 hours. The solvent was then removed in vacuo and the residue partitioned between water (750 ml) and methylene chloride (300 ml). The aqueous layer was extracted with additional methylene chloride (2*300 ml) and the combined organic extracts were washed once with water and once with saturated aqueous sodium chloride. Removal of solvent provided a dark amber foam, which was purified by column chromatography (99:1 methylene chloride:methanol) to yield the title product (12.1 g, 54 mmol, 51percent yield).

The synthetic route of 253-72-5 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; Pfizer Inc.; US5037834; (1991); A;,
1,8-Naphthyridine – Wikipedia
1,8-Naphthyridine | C8H6N2 – PubChem