反应 #3450472
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openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US09394301B2
反应条件: temp:80.01; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: 4-Bromophenol (0.33 g, 1.88 mmol), ((R)-2-hydroxy-propyl)-carbamic acid tert-butyl ester (0.33 g, 1.88 mmol) and triphenylphosphine (0.74 g, 2.82 mmol) were dissolved in anhydrous toluene. A solution of di-tert-butyl azodicarboxylate (0.65 g, 2.82 mmol) in toluene (5 ml) was added slowly ensuring that the temperature did not exceed 35° C. The reaction mixture was heated to 80° C. and stirred overnight. The solvent was removed in vacuo and the residue was dissolved in ethyl acetate and subsequently washed with 1M HCl, water, then brine and dried over magnesium sulfate, filtered and concentrated in vacuo to give the desired product. Yield: 0.62 g, 100. LCMS method: 2, RT: 6.18 min; MI: 330-332 [M+1]. did not exceed 35° C The solvent was removed in vacuo the residue was dissolved in ethyl acetate subsequently washed with 1M HCl, water brine and dried over magnesium sulfate filtered concentrated in vacuo
来源 ID: ord-8eca2553bf2842a8a81ae2039c951f5d