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Thioacetic acid is an organosulfur compound with the molecular formula CH 3 C(O)SH. It is a thioic acid : the sulfur analogue of acetic acid ( CH 3 C(O)OH ), as implied by the thio- prefix. It is a yellow liquid with a strong thiol -like odor.
General structure of a monothioacetal General structure of a dithioacetal. In organosulfur chemistry, thioacetals are the sulfur analogues of acetals (R−CH(−OR) 2).There are two classes: the less-common monothioacetals, with the formula R−CH(−OR')−SR", and the dithioacetals, with the formula R−CH(−SR') 2 (symmetric dithioacetals) or R−CH(−SR')−SR" (asymmetric dithioacetals).
At neutral pH, thiocarboxylic acids are fully ionized. Thiocarboxylic acids are about 100 times more acidic than the analogous carboxylic acids. Thiobenzoic acid has a pK a of 2.48 compared with 4.20 for benzoic acid, and thioacetic acid has a pK a near 3.4 compared with 4.72 for acetic acid. [8]
Tetradecylthioacetic acid (TTA) is a synthetic fatty acid used as a nutritional supplement. TTA acts as a peroxisome proliferator-activated receptor alpha ...
Thioacetic acid; Thiobenzoic acid; Thioformic acid This page was last edited on 23 December 2024, at 17:54 (UTC). Text is available under the Creative Commons ...
Lipoic acid (LA), also known as α-lipoic acid, alpha-lipoic acid (ALA) and thioctic acid, is an organosulfur compound derived from caprylic acid (octanoic acid). [3] ALA, which is made in animals normally, is essential for aerobic metabolism. It is also available as a dietary supplement or pharmaceutical drug in some countries.
Acid anhydrides and some lactones also give thioesters upon treatment with thiols in the presence of a base. Thioesters can be conveniently prepared from alcohols by the Mitsunobu reaction, using thioacetic acid. [6] They also arise via carbonylation of alkynes and alkenes in the presence of thiols. [7]
The reaction was first reported in 1949 with thioacetic acid as reagent [3] [4] and rediscovered in 2009. [5] It is used in click chemistry [6] [7] [8] and in polymerization, especially with dendrimers.