Benzyl Alcohol → HCID 69358566, compound

Participants

Reaction Conditions

Reaction Steps

NEt3 (14.2 ml, 102 mmol, 1.3 equiv) and diphenylphosphoryl azide (22 ml, 102 mmol, 1.3 equiv) were added to a suspension of 5-ethoxy-isophthalic acid monomethyl ester (D45) (17.6 g, 78.6 mmol, 1 equiv) in toluene (250 ml) and the mixture heated at 80° C. for 3 h. Benzyl alcohol (12 ml, 118 mmol, 1.5 equiv) was added and the resulting mixture was refluxed for 4 h, cooled to room temperature and concentrated in vacuo. The residue was dissolved in AcOEt (300 ml) and the resulting solution was washed with 2N aqueous HCl solution (100 ml) followed by saturated aqueous NaHCO3 solution (100 ml), dried over MgSO4 and concentrated in vacuo. The residue was triturated with Et2O to give 3-benzyloxycarbonylamino-5-ethoxy-benzoic acid methyl ester (D47) (15 g, 62%) as a white solid. [M−H]−=328.1, RT=3.46 min

Provenance & Evidence