870-73-5Relevant articles and documents
Evidence for heterolytic cleavage of C-S bonds in the photolysis of 1,3,5-trithianes
Hug,Janeba-Bartoszewicz,Filipiak,Pedzinski,Kozubek,Marciniak
, p. 883 - 892 (2008/12/23)
The homolytic/heterolytic nature of photolytic C-S bond cleavage was studied in 1,3,5-trithianes. The mechanism of photolysis was refined from previous studies. First, evidence was presented for the existence of a precursor of the biradical-like transient (I) which itself was identified in previous studies. Second, the nature of I was further clarified through methanol-scavenging experiments where the results could be interpreted as lending credibility to the notion that I has significant bipolar character. Kinetic and spectral analyses of transient absorptions, following laser excitation of the trithianes, showed that I was reacting with methanol. Complementary steady-state photolytic quantum yields supported this finding, and additional, but unidentified, stable products from irradiations in methanol were seen in the HPLC. The formation of these products was interpreted as likely arising from a nucleophilic attack of methanol at the carbocationic end of the bipolar structure of I.
A New Preparation of 5-(Alkylthio)-1,2-dithiole-3-thiones and a Highly Functionalized 1,3-Dithiole-2-thione
Lu, F. L.,Keshavarz-K., M.,Srdanov, G.,Jacobson, R. H.,Wudl, F.
, p. 2165 - 2169 (2007/10/02)
A "one-pot" preparation of the title 1,2-dithiole-3-thiones as well as the preparation and characterization of methyl 5-(methylthio)-2-thioxo-1,3-dithiole-4-dithiocarboxylate (3) are described.The X-ray structure determination of an iodine complex of the dithiolodithiole 5 is described in detail.The structure shows that this is a molecular solid with unusual three-dimensional intermolecular sulfur-sulfur "bonding".
SYNTHESE DIRECTE DE DITHIOESTERS A PARTIR DES ACIDES CARBOXYLIQUES
Davy, Hubert,Metzner, Patrick
, p. 2701 - 2712 (2007/10/02)
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