Ad
related to: p-benzoquinone msds
Search results
Results From The WOW.Com Content Network
1,4-Benzoquinone, commonly known as para-quinone, is a chemical compound with the formula C 6 H 4 O 2. In a pure state, it forms bright-yellow crystals with a characteristic irritating odor, resembling that of chlorine , bleach , and hot plastic or formaldehyde.
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]
Benzoquinone (C 6 H 4 O 2) is a quinone with a single benzene ring. There are 2 (out of 3 hypothetical) benzoquinones: 1,4-Benzoquinone, most commonly, right image (also para-benzoquinone, p-benzoquinone, para-quinone, or just quinone) 1,2-Benzoquinone, less commonly, left image (also ortho-benzoquinone, o-benzoquinone, ortho-quinone)
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.
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.
Tetrahydroxy-1,4-benzoquinone, also called tetrahydroxy-p-benzoquinone, tetrahydroxybenzoquinone, or tetrahydroxyquinone (THBQ, THQ), is an organic compound with formula C 6 O 2 (OH) 4. Its molecular structure consists of a cyclohexadiene ring with four hydroxyl groups and two ketone groups in opposite ( para ) positions.
Tetrahydroxy-1,4-benzoquinone biscarbonate is a chemical compound, an oxide of carbon with formula C 8 O 8. Its molecule consists of a 1,4-benzoquinone core with the four hydrogen atoms replaced by two carbonate groups. It can be seen as a fourfold ester of tetrahydroxy-1,4-benzoquinone and carbonic acid.
In enzymology, a p-benzoquinone reductase (NADPH) (EC 1.6.5.6) is an enzyme that catalyzes the chemical reaction. NADPH + H + + p-benzoquinone NADP + + hydroquinone. The 3 substrates of this enzyme are NADPH, H +, and p-benzoquinone, whereas its two products are NADP + and hydroquinone.