Related Products of 394-35-4, A common heterocyclic compound, 394-35-4, name is Methyl 2-fluorobenzoate, molecular formula is C8H7FO2, 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.
3-(tert-Butoxycarbonylamino)piperidine (7.07 g, 35.3 mmol) was dissolved in N,N-dimethylformamide (120 mL). To this solution, potassium carbonate (9.80 g, 70.9 mmol) and methyl 2-fluorobenzoate (5.0 mL, 39.2 mmol) were added and the mixture was stirred at 130¡ãC for 8 hours. Subsequently, the mixture was allowed to cool, diluted with ethyl acetate, and washed sequentially with water and brine. The washed product was dried over sodium sulfate and the solvent was evaporated. Purification of the resulting residue by silica gel column chromatography (hexane: ethyl acetate = 10:1 -> 5:1) gave 2.34 g (20percent) of the desired compound as a yellow oil. 1H NMR (400 MHz, CDCl3) delta 1.46 (9H, s), 1. 55-1. 66 (2H, m), 1. 74-1. 85 (1H, m), 1.86-1.98 (1H, m), 2.84 (1H, t, J = 9.8 Hz), 2.98 (1H, dd, J = 11.6, 5.0 Hz), 3.01-3.10 (2H, m), 3.86-3.92 (1H, m), 3.94 (3H, s), 5.62 (1H, brs), 7.01-7.07 (2H, m), 7.41 (1H, t, J = 8.6 Hz), 7.69 (1H, d, J = 6.1 Hz).
The synthetic route of 394-35-4 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; KYORIN PHARMACEUTICAL CO., LTD.; EP1780210; (2007); A1;,
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