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Chloranil is a quinone with the molecular formula C 6 Cl 4 O 2. Also known as tetrachloro-1,4-benzoquinone, it is a yellow solid. Also known as tetrachloro-1,4-benzoquinone, it is a yellow solid. Like the parent benzoquinone, chloranil is a planar molecule [ 2 ] that functions as a mild oxidant.
Chloranilic acid is an organic compound with the chemical formula C 6 Cl 2 O 2 (OH) 2. It is a red-orange solid. The compound is obtained by hydrolysis of chloranil: C 6 Cl 4 O 2 + 2 H 2 O → C 6 Cl 2 O 2 (OH) 2 + 2 HCl. It is centrosymmetric, planar molecule. It also crystallizes as a dihydrate. [2]
US regulations limit HCB in commercial production to 0.05% of chlorothalonil. According to the EPA report, "post-application exposure to HCB from chlorothalonil is not expected to be a concern based on the low level of HCB in chlorothalonil. 2,3,7,8-Tetrachlorodibenzodioxin being one of the most potent carcinogens known is also a known ...
Relative to benzoquinone, more strongly oxidizing quinones include chloranil and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (also known as DDQ). [6] The oxidizing power of quinones is enhanced by the presence of acids. [7] In acidic conditions, quinone undergoes two-electron and two-proton reduction to hydroquinone.
Many organochlorine compounds have been isolated from natural sources ranging from bacteria to humans. [3] [4] Chlorinated organic compounds are found in nearly every class of biomolecules and natural products including alkaloids, terpenes, amino acids, flavonoids, steroids, and fatty acids.
2,3-Dichloro-5,6-dicyano-1,4-benzoquinone (or DDQ) is the chemical reagent with formula C 6 Cl 2 (CN) 2 O 2. This oxidant is useful for the dehydrogenation of alcohols, [3] phenols, [4] and steroid ketones. [5] DDQ decomposes in water, but is stable in aqueous mineral acid. [6]
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