Lithium Hydroxide → 3'-(2-Phenoxy-ethylsulfanylmethyl)-biphenyl-3-carboxylic acid

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Reaction Steps

3′-(2-Phenoxy-ethylsulfanylmethyl)-biphenyl-3-carboxylic acid was synthesized as described for 4′-(2-phenoxy-ethylsulfanylmethyl)-biphenyl-3-carboxylic acid. 3′-(2-Phenoxy-ethylsulfanylmethyl)-biphenyl-3-carboxylic acid ethyl ester (0.80 g, 2.04 mmol, 1 eq.) in 30% aqueous THF was treated with lithium hydroxide (0.15 g, 6.12 mmol, 3 eq.). When complete, the reaction was worked up as described leaving 3′-(2-phenoxy-ethylsulfanylmethyl)-biphenyl-3-carboxylic acid (0.73 g, 98% yield) as an orange oil that solidified on standing.

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