Diethyl Ether → 3-(2-Methyl-oxazol-4-yl)-benzoic acid methyl ester

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Reaction Steps

A solution of 3-(2-methyl-oxazol-4-yl)-benzoic acid (1.42 g) in a mixture of MeOH (30 mL) and 4NHCl/Et2O (6 mL) was heated to 40° C. for 4 h. The solution was evaporated in vacuum and the residual oil was stirred with H2O (30 mL), the pH of the mixture being set to about 6 by the addition of sat. NaHCO3 solution. The precipitate was isolated by filtration to give 3-(2-methyl-oxazol-4-yl)-benzoic acid methyl ester (1.18 g) as light-brown solid,

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