Application of 629655-23-8 ,Some common heterocyclic compound, 629655-23-8, molecular formula is C5H3ClN2O3, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc., below Introduce a new synthetic route.
[0716] To a solution of XIV-3 (5.4 g, 31.03 mmol) in DMF (30 mL) was added NaOMe (8.4 g, 155.17 mmol), the reaction mixture was stirred at 80 C. for 10 hrs. The mixture was cooled to rt and poured into water, extracted with EtOAc. Combined organic phase was washed with brine and concentrated under vacuum to afford the crude product. The residue was purified by column chromatography (PE:EA=1:1) to afford XIV-4 as a pale yellow solid (4.5 g, 85% yield). 1HNMR (CDCl3, 300 MHz) delta 11.48 (brs, 1H), 8.10 (d, J=5.7 Hz, 1H), 6.71 (d, J=5.7 Hz, 1H), 4.11 (s, 3H).
In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles. 629655-23-8, 2-Chloro-3-nitropyridin-4-ol, other downstream synthetic routes, hurry up and to see.
Reference:
Patent; Buckman, Brad Owen; Nicholas, John Beamond; Ramphal, Johnnie Y.; Emayan, Kumaraswamy; Seiwert, Scott D.; US2014/94456; (2014); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem