Thioglycolic Acid → 2-Carboxymethylthio-2-methyltetrahydrofuran

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Reaction Steps

A mixture of 2-methyl-4,5-dihydrofuran and 2-mercaptoacetic acid in THF are treated with a catalytic amount of para-toluene sulfonic acid according to the procedure in Example I.A.2. After removal of the solvent, S-(2-methyl-tetrahydrofuran-2-yl) mercaptoacetic acid is obtained. Alternatively, mercaptosuccinic acid is reacted with 2-methyl-4,5-dihydrofuran and then converted to a mercaptosuccinic anhydride derivative by a dehydrating agent such as dicyclohexyl carbodiimide.

Provenance & Evidence