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On the Mechanism of a Model Quercetinase Reaction using a Cobalt Schiff-base Complex

DOI: 10.1039/DT9940000805

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 805 - 810 (1994)

Update date:2022-08-04

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Authors:

Nishinaga, AkiraNishinaga, Akira

Kuwashige, TomoyoshiKuwashige, Tomoyoshi

Tsutsui, ToshihikoTsutsui, Toshihiko

Mashino, TakahiroMashino, Takahiro

Maruyama, KazushigeMaruyama, Kazushige

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Article abstract of DOI:10.1039/DT9940000805

Cyclic voltammetry of a substrate anion-catalyst binary complex intermediate 1> 1); H2salen = N,N'-bis(salicylidene)ethane-1,2-diamine> in a model quercetinase reaction using as catalyst has revealed that the intermediate partly undergoes ionic dissociation in dimethylformamide (dmf) to give L1 and (1+).Dioxygen is then incorporated into the flavonolate anion in a non-radical manner, which is promoted by the counter cobalt cation complex, finally to give 2(dmf)>(HL2 = a depside product) which then forms L2 and (1+).The reaction rate was affected by the nature of the cation employed: (1+) is more effective than K(1+).

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Product name:Co(C2H4(NCHC6H4O)2)(C9H3O3(OCH3)C6H4OCH3)

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