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Thiophene is considered to be aromatic, although theoretical calculations suggest that the degree of aromaticity is less than that of benzene. The "electron pairs" on sulfur are significantly delocalized in the pi electron system. As a consequence of its aromaticity, thiophene does not exhibit the properties seen for conventional sulfides. For ...
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 .
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
Thiophene-2-carboxaldehyde is an organosulfur compound with the formula C 4 H 3 SCHO. It is one of two isomeric thiophenecarboxaldehydes. It is a colorless liquid that often appears amber after storage.
BEIJING (Reuters) -China accused the Philippines on Friday of having "provoked trouble" in the South China Sea with U.S. backing, a week after Beijing and Manila traded accusations over a new ...
In organic chemistry, the Paal–Knorr synthesis is a reaction used to synthesize substituted furans, pyrroles, or thiophenes from 1,4-diketones.It is a synthetically valuable method for obtaining substituted furans and pyrroles, which are common structural components of many natural products.
Tulsi Gabbard, Donald Trump’s pick to lead the intelligence community, was briefly placed on a Transportation Security Administration list that prompts additional security screening before ...
Terthiophene is the organic compound with the formula [C 4 H 3 S] 2 C 4 H 2 S. It is an oligomer of the heterocycle thiophene, a shorter oligomer is dithienyl, and the parent polymer is polythiophene.