Some common heterocyclic compound, 123986-64-1, name is tert-Butyl 4-(hydroxymethyl)benzylcarbamate, molecular formula is C13H19NO3, 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. Formula: C13H19NO3
3) Synthesis of 1-[4-[N-(tert-butoxycarbonyl)aminomethyl]benzyl]-4-phenylpiperidine To a solution of 5.0 g (21.07 mM) of 4-[N-(tert-butoxycarbonyl)aminomethyl]-1-phenylmethanol and 5.9 ml (42.33 mM) of triethylamine in THF (42 ml) was added 2.5 ml (32.3 mM) of methanesulfonyl chloride at 0 C. and the mixture was stirred at the prevailing temperature for one hour. The reaction was then stopped by adding saturated aqueous solution of sodium hydrogen carbonate and the mixture was extracted with ethyl acetate. The organic layer was washed with water and saturated aqueous solution of sodium chloride and dried over MgSO4. The solvent was then distilled off under reduced pressure to provide 6.72 g (21.07 mM) of crude product as light-brown solid. To a solution of 6.72 g (21.07 mM) of this crude mesylate in ethanol (42 ml) was added 5.9 ml (42.33 mM) of triethylamine as well as 3.40 g (21.09 mM) of 4-phenylpiperidine and the mixture was refluxed for 18 hours. After cooling to room temperature, the reaction mixture was diluted with water and extracted with ethyl acetate. The organic layer was washed with water and saturated aqueous solution of sodium chloride and dried over magnesium sulfate. After concentration, the crude product was purified by column chromatography (ethyl acetate-hexane: 50%) to provide the title compound as light-yellow solid. Yield 5.77 g (72%) m.p. 73-74 C. 1H-NMR (200 MHz, CDCl3) delta: 1.46 (9H, s), 1.73-1.88 (4H, m), 1.99-2.19 (1H, m), 2.94-3.08 (2H, m), 3.54 (2H, s), 4.31 (2H, d, J=5.8 Hz), 4.73-4.96 (1H, m), 7.13-7.36 (4H, m). IR (KBr): 3389, 1690, 1518, 1269, 1171 cm-1.
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 123986-64-1, its application will become more common.
Reference:
Patent; Takeda Chemical Industries, Ltd.; US6235731; (2001); B1;,
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