Photochemical Hydroxylation of Salicylic Acid with Hydrogen Peroxide; Mechanistic Study of Substrate Sensitized Reaction

[img]PDF - Authorized users only
Language: English
64Kb
Title:Photochemical Hydroxylation of Salicylic Acid with Hydrogen Peroxide; Mechanistic Study of Substrate Sensitized Reaction
Creators:
Lang, Kamil
Brodilová, Jiřina
Luňák, Stanislav
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 61, 12, pp. 1729-1737
Uncontrolled Keywords:Photochemical hydroxylation, Hydrogen peroxide, 2-Hydroxybenzoic acid

Abstract

The photochemical hydroxylation of salicylic acid (SA) by hydrogen peroxide proceeds via the same intermediate independently of the excited reactant (i.e. SA or H<sub>2</sub>O<sub>2</sub>). This conclusion is supported by the similar effect of pH on the quantum yields and on the isomer ratio of formed products: 2,3-dihydroxybenzoic acid (2,3-DHB) and 2,5-dihydroxybenzoic acid (2,5-DHB). The product ratio ([2,3-DHB]/[2,5-DHB]) is not affected by H<sub>2</sub>O<sub>2 </sub>concentration.

Title:Photochemical Hydroxylation of Salicylic Acid with Hydrogen Peroxide; Mechanistic Study of Substrate Sensitized Reaction
Creators:
Lang, Kamil
Brodilová, Jiřina
Luňák, Stanislav
Uncontrolled Keywords:Photochemical hydroxylation, Hydrogen peroxide, 2-Hydroxybenzoic acid
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:61
Number:12
Page Range:pp. 1729-1737
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19961729UNSPECIFIED
ID Code:1080
Item Type:Article
Deposited On:06 Feb 2009 17:06
Last Modified:06 Feb 2009 16:06

Citation

Lang, Kamil; Brodilová, Jiřina; Luňák, Stanislav (1996) Photochemical Hydroxylation of Salicylic Acid with Hydrogen Peroxide; Mechanistic Study of Substrate Sensitized Reaction. Collection of Czechoslovak Chemical Communications, 61 (12). pp. 1729-1737. ISSN 0010-0765

Repository Staff Only: item control page