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Thiophene is a heterocyclic compound with the formula C 4 H 4 S. Consisting of a planar five-membered ring, it is aromatic as indicated by its extensive substitution ...
Thiophene-2-carboxylic acid is an organic compound with the formula SC 4 H 3 CO 2 H. It is one of two mono carboxylic acids of thiophene , the other being thiophene-3-carboxylic acid. [ 1 ] Copper(I) thiophene-2-carboxylate is a catalyst for Ullmann coupling reactions .
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Thiophene-2-acetic acid is the organosulfur compound with the formula HO 2 CCH 2 C 4 H 3 S. Together with thiophene-3-acetic acid, it is one of two isomeric thiophene acetic acids. Preparation and use
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A yellow liquid, it is the more useful of the two isomers of acetylthiophene. It is of commercial interest as a precursor to both thiophene-2-carboxylic acid and thiophene-2-acetic acid. [2] It is prepared by the reaction of thiophene with acetyl chloride in the presence of stannic chloride. [3]
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