1003-98-1, As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 1003-98-1 name is 2-Bromo-4-fluoroaniline, This compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below.
2-Propyl-3-propyl-5-fluoro-1H-indole; A 50 mL three neck flask was charged with palladium acetate (22.4 mg, 0.1 mmol), dtbpf (94 mg, 0.2 mmol), potassium carbonate (690 mg, 5 mmol), 2-bromo-4-fluoroaniline (380 mg, 2 mmol), 4-octyne (264 mg, 2.4 mmol) and NMP (10 ml). The mixture was purged with argon and heated to 130 C. After 1 hr, the reaction mixture was cooled to rt. Ethyl acetate and water were added. The organic layer was separated and the aqueous layer was extracted with ethyl acetate. The combined organic phases were washed with water, brine and dried with MgSO4. Removal of the solvents and purification of the crude by column chromatography afforded the desired product as yellow oil (355 mg, containing 4.3 wt % AcOEt). The corrected yield was 77.6%. 1H NMR (400 MHz): delta=7.68 (s, 1H), 7.16-7.13 (m, 2H), 6.83 (td, 1H, J=9.2 Hz, J=2.4), 2.68 (t, 2H, J=7.6 Hz), 2.61 (t, 2H, J=7.6), 1.72-1.57 (m, 4H), 0.98 (t, 3H, J=7.2 Hz), 0.95 (t, 3H, J=7.2 Hz).
The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.
Reference:
Patent; Boehringer Ingelheim International GmbH; US2005/209465; (2005); A1;,
Bromide – Wikipedia,
bromide – Wiktionary