Literature DB >> 17595138

The singlet oxygen oxidation of chlorpromazine and some phenothiazine derivatives. Products and reaction mechanisms.

Enrico Baciocchi1, Tiziana Del Giacco, Osvaldo Lanzalunga, Andrea Lapi, Daniele Raponi.   

Abstract

A kinetic and product study of the reactions of chlorpromazine 1, N-methylphenothiazine 2, and N-ethylphenothiazine 3 with singlet oxygen was carried out in MeOH and MeCN. 1 undergoes exclusive side-chain cleavage, whereas the reactions of 2 and 3, in MeOH, afforded only the corresponding sulfoxides. A mechanism for the reaction of 1 is proposed where the first step involves an interaction between singlet oxygen and the side-chain dimethylamino nitrogen. This explains why no side-chain cleavage is observed for 2 and 3.

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Year:  2007        PMID: 17595138     DOI: 10.1021/jo0706980

Source DB:  PubMed          Journal:  J Org Chem        ISSN: 0022-3263            Impact factor:   4.354


  2 in total

1.  A significant improvement of the efficacy of radical oxidant probes by the kinetic isotope effect.

Authors:  Kousik Kundu; Sarah F Knight; Seungjun Lee; W Robert Taylor; Niren Murthy
Journal:  Angew Chem Int Ed Engl       Date:  2010-08-16       Impact factor: 15.336

2.  Effects of the Chalcogenide Identity in N-Aryl Phenochalcogenazine Photoredox Catalysts.

Authors:  Daniel A Corbin; Christopher Cremer; Katherine O Puffer; Brian S Newell; Frederic W Patureau; Garret M Miyake
Journal:  ChemCatChem       Date:  2022-07-08       Impact factor: 5.497

  2 in total

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