The Kinetics and Thermodynamics of Transient Equilibria of Reactive Intermediates. I. Theoretical Relationships for the Evaluation of Rate and Equilibrium Constants.

Parker, Vernon D.; Storflor, Harry; Brobakke, Kristin; Carlberg, Georg E.; Sterner, Olov; Wickberg, Börje

doi:10.3891/acta.chem.scand.37b-0871

Cited by 5 publications

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“…The structure of a dimer formed by 9-anthraldehyde (ANCHO) has not been studied chemically but it has been suggested (without proof) that it does not form a glycol but instead forms a dimer by coupling in position 10 (10, 11). The mechanism of the electroreduction of similar compounds: 9-cyano and 9-nitroanthracene has also been studied (10)(11)(12)(13)(14)(15)(16). In the case of 9-cyanoanthracene it was found that the dimerization Drocess is reversible and two mechanisms have been proposed: formation of a non-bonded dimer followed by a C-C bond formation (14) and a reversible formation of the C-C dimer ( 16).…”

Section: Introductionmentioning

confidence: 99%

Mechanism of electroreduction of 9-anthraldehyde

Lasia¹,

Rami²

1987

Can. J. Chem.

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ANDRZEJ LASIA and ABDELHAQ RAMI. 1987. Can. J. Chem. 65, 744 (1987). The electroreduction of 9-anthraldehyde (ANCHO) and 10-methyl-9-anthraldehyde (MeANCHO) has been studied in aprotic solvents. The anion free radicals of both compounds undergo subsequent dimerization reaction with ANCHOT being more reactive than MeANCHO'. The rate constant of the dimerization reaction depends on the solvent and for ANCHO' in HMPA is equal to 2 x lo4 M-I S-I . Using spectroscopic measurements it has been shown that thedimerization takes place at position 10.ANDRZEJ LASIA et ABDELHAQ RAMI. 1987. Can. J. Chem. 65, 744 (1987).L'ClectrorCduction du 9-anthraldkhyde (ANCHO) et du 10-mCthyl-9-anthraldChyde (MeANCHO) a CtC CtudiCe dans les solvants aprotiques. Les anions radicaux de ces composCs se dimCrisent et ANCHOS est beaucoup plus rkactif que MeANCHO'. La constante de vitesse de dimkrisation dCpend du solvant et pour ANCHO' dans le HMPA cette constante Cgale 2 X lo4 M-I s-'. La structure de dimkre a CtC CtudiCe par la spectroscopie rmn et on a trouvC que la dimCrisation a lieu i la position 10.

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Section: Introductionmentioning

confidence: 99%