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Biosynthesis of a Flavonol from a Flavanone by Establishing a One-pot Bienzymatic Cascade
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Biosynthesis of a Flavonol from a Flavanone by Establishing a One-pot Bienzymatic Cascade

Published on: August 14, 2019

Flavonoids and other phenolics from leaves of two Marlierea species (Myrtaceae)

A C.F. Amaral1, R M. Kuster, W d.S. Bessa

  • 1Instituto de Tecnologia em Fármacos, Far-manguinhos, Fiocruz, Rua Leopoldo Bulhões 1480, 21045-900, RJ, Rio de Janeiro, Brazil

Biochemical Systematics and Ecology
|May 5, 2001
PubMed
Abstract

No abstract available in PubMed .

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Oxidation of Phenols to Quinones01:17

Oxidation of Phenols to Quinones

In the presence of oxidizing agents, phenols are oxidized to quinones. Quinones can be easily reduced back to phenols using mild reducing agents. The electron-donating hydroxyl group enhances the reactivity of the aromatic ring, enabling oxidation of the ring even in the absence of an α hydrogen.
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox property is crucial in...