Bulletin of the Chemical Society of Japan p. 2648 - 2655 (1991)
Update date:2022-08-11
Topics:
Osawa, Yoshihiro
Nishimura, Norio
Yamamoto, Shunzo
The rate of reaction between Leuco Bindschedler's Green (BGH) and some p-benzoquinone derivatives (Q's) in acetone was followed spectrophotometrically by means of the stopped-flow technique.The reaction was found to proceed reversibly.The rate data and the activation parameters for the forward and backward reactions were estimated.The rates were susceptible to the oxidation-reduction potentials of the Q's.The absorption spectra observed at low temperatures indicated that three kinds of intermediates were involved.Radicals formed during the reaction were detected by the ESR method.The results have been discussed in relation to those previously obtained for systems involving Leuco Crystal Violet (LCV) and Leuco Malachite Green (LMG).
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