53846-98-3Relevant academic research and scientific papers
Metallophthalocyanines linked to organic copolymers as efficient oxidative supported catalysts
Sanchez, Muriel,Chap, Nicolas,Cazaux, Jean-Bernard,Meunier, Bernard
, p. 1775 - 1783 (2001)
The covalent anchoring of metallo(chlorosulfonyl)phthalocyanines 1 onto the acrylic copolymers 2 and 3 has been achieved. When using H2O2 or KHSO5 as oxidant, these supported catalysts are able to oxidize a poorly biodegradable molecule such as 2,4,6-trichlorophenol or a tannin model such as 3,5-di-tert-butylcatechol. The influence of the spacer and the nature of the reaction medium on the catalytic activities have been studied, as well as the recycling of these supported metallophthalocyanine catalysts.
Mechanism of C-C Cleavage of Cyclic 1,2-Diketones with Alkaline Hydrogen Peroxide. The Acyclic Mechanism and Its Application to the Basic Autooxidation of Pyrogallol
Sawaki, Yasuhiko,Foote, Christopher S.
, p. 5035 - 5040 (2007/10/02)
The reaction of 3,5-di-tert-butyl-o-benzoquinone (3) with alkaline hydrogen peroxide was found to give a considerable amount of methyl ester 5 when H2O2 was added dropwise.In contrast, the corresponding diacids were not obtained from o-benzoquinone or 1,2-naphthoquinone on reaction with alkaline H2O2.An 18O-tracer study of the reaction of 3 and 9,10-phenanthrenequinone indicated that the C-C cleavage reaction proceeds via the acyclic Baeyer-Villiger type mechanism and clearly eliminated possible dioxetane or epoxide mechanisms.A similar study of the base-catalyzed autooxidation of 4,6-di-ter-butylpyrogallol revealed that the C-C bond is cleaved in a similar way by hydrogen peroxide formed from O2 and the polyphenol.
PHOTOINDUCED ELECTRON TRANSFER OXIDATION - 1. 9,10-DICYANOANTHRACENE-SENSITIZED PHOTOOXIDATION OF HINDERED PHENOLS.
Futamura,Yamazaki,Ohta,Kamiya
, p. 3852 - 3855 (2007/10/02)
9,10-Dicyanoanthracene (DCA)-sensitized photooxidation reactions of hindered phenols and catechols (I) proceed via the initial electron transfer from 1 to **1DCA. 4-Hydroperoxy-2,5-cyclohexadien-1-ones and 4-hydroxy-2,5-cyclohexadien-1-ones are obtained from 2,4,6-trialkyl-substituted phenols, and an o-benzoquinone and furanone derivatives are afforded from 3,5-di-t-butylcatechol.
