Five member ring sulfenate esters and thiosulfinate esters
Disclosed are novel sulfenate esters and thiosulfinate esters that induce the expression of metabolic enzymes, particularly Phase II enzymes such as glutathione-s-transferase, DT-diaphorase and Ferritin H when administered to a subject. Also disclosed, su
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(2011/07/06)
Reactions of transition-metal η1-propargyl complexes with sulfur dioxide and sulfur trioxide: Transition-metal-carbon bond cleaving reactions of the cycloadducts which yield 1,2-oxathiole-2-oxides and -2,2-dioxides
The preparation of several cyclopentadienyl iron dicarbonyl and triphenylphosphine manganese tetracarbonyl η1-2-alkynyl complexes are reported. The [3+2] cycloaddition reactions of these complexes with sulfur dioxide and sulfur trioxide yielded transition-metal substituted 1,2-oxathiolene-2-oxides and 1,2-oxathiolene-2,2-dioxides, respectively. One of the η1-propargyl complex SO3 cycloadducts has been characterized by X-ray crystallography. The transition metal can subsequently be cleaved from the oxathiole-oxide and dioxide containing complexes to produce a variety of new sulfur containing heterocycles.
Hurley, Allison L.,Welker, Mark E.,Day, Cynthia S.
p. 150 - 159
(2007/10/03)
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