2-Amino-5-chloro-3-fluoropyridine

5-chloro-2, 3-difluoro-pyridine (100g, 0.669mol) and ammonia (1.125L, 8.025mol) added to the autoclave.After the reaction 120 sealed 24h, the reaction was complete, the cooling pale yellow solid precipitation, filtration, the filter cake was washed with water, and the filtrate was extracted with ethyl acetate, and the combined organic layer was dried over anhydrous sodium sulfate, the organic phase was distilled off under reduced pressure, with beating a small amount of petroleum ether, filtration, and precipitation cake cake obtained will be collected at the same time to give the compound 2-amino-3-fluoro-5-chloropyridine 84.22g, yield 85.94percent.Example 4Preparation of 6-chloro-1-(pentan-3-yl)-1H-imidazo[4, 5-b]pyridin-2-ol; Example 4(a) 5-chloro-3-fluoropyridin-2-amine: To a 20 mL microwave vial equipped with a stir bar was added 5-chloro-2, 3-difluoropyridine (2.0 g, 41 mmol). Ammonium hydroxide (ca 12 mL) was then added and the mixture was stirred until homogeneous. The solution was capped and heated in the microwave reactor at 150° C. for three 20 minute increments until a white solid precipitated out of solution. The white solid was filtered, washed with water, and dried to afford 2-amino-5-chloro-3-fluoropyridine (1.5 g, 76percent yield), characterized by 1H NMR (dExample 5(a) 5-Chloro-3-fluoropyridin-2-amine.; To a stainless steel high pressure reactor was added 5-chloro-2, 3-difluoropyridine (18.0 g) and ammonium hydroxide (65 mL). The reaction was heated to 165° C. for three hours. The reaction mixture was then cooled to room temperature and diluted with water (100 mL). The resultant solid was filtered, dried, re-dissolved in CH

Molecular Weight:146.55
XLogP3:1.2
Hydrogen Bond Donor Count:1
Hydrogen Bond Acceptor Count:3
Exact Mass:146.0047040
Monoisotopic Mass:146.0047040
Topological Polar Surface Area:38.9
Heavy Atom Count:9
Complexity:101
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes