10191-35-2Relevant articles and documents
Kinetic study of iridium(III) catalyzed oxidation of D-mannitol and erythritol by N-bromosuccinimide in acidic medium
Srivastava, Sheila,Gupta, Vandana
, p. 1103 - 1106 (2008/02/04)
Kinetic investigations on iridium trichloride catalyzed oxidation of D-mannitol and erythritol by acidic solution of N-bromosuccinimide (NBS) in the presence of mercuric acetate as a scavenger for Br- have been carried out in the temperature range 30-45 °C. The reactions follow identical kinetics. The rate shows a first-order dependence on [NBS] in lower concentration range which tends to zero-order at its higher concentrations. A first-order dependence on [IrIII] is also observed. Negligible effect of [substrate], [Hg(OAc)2] and ionic strength have been observed. Addition of [H+], [Cl-] and succinimide shows a negative effect. Activation parameters have been computed and a suitable mechanism conforming to above results has been proposed.
Chemical reactions induced by ultrasound and γ-rays in aqueous solutions of L-ascorbic acid
Portenlaenger, Guenther,Heusinger, Helmut
, p. 291 - 302 (2007/10/02)
The degradation of L-ascorbic acid in aqueous solutions by ultrasound and ionising radiation was more extensive in the presence than in the absence of air.The primary products were L-erythro-2,3-hexodiulosonic acid, cis- and trans-L-glycero-4-hexulos-2-enonic acid; the secondary products were 2-pentulosonic acid, 4-pentulos-2-enonic acid, tetronic acid, and glyceric acid; and the tertiary product was tetraric acid.The formation of products with less than six carbon atoms was especially effective during irradiation in the presence of air.A mechanism for the degradation of L-ascorbic acid by sonolysis and radiolysis is proposed.
OXIDATION OF LYXOSE BY COPPER(II) IONS IN AN ACID MEDIUM
Krupenskii, V. I.
, p. 641 - 643 (2007/10/02)
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