4946-22-9Relevant articles and documents
Imposing Latency in Ruthenium Sulfoxide-Chelated Benzylidenes: Expanding Opportunities for Thermal and Photoactivation in Olefin Metathesis
Alassad, Nebal,Goldberg, Israel,Kozuch, Sebastian,Lemcoff, N. Gabriel,Nechmad, Noy B.,Rozenberg, Illya,Segalovich-Gerendash, Gal
, p. 4827 - 4834 (2020/06/01)
Herein we show the design and synthesis of an electron-rich, sulfoxide-chelated, ruthenium benzylidene. In contrast to previously reported sulfoxide-chelated ruthenium benzylidenes, this complex is more stable in a cis-dichloro conformation and is thus latent in typical olefin metathesis reactions. The complex was characterized by NMR, UV-vis, and X-ray spectroscopy, alongside density functional theory computations. The latent precatalyst could be activated thermally and, depending on the solvent, by UV-C or visible light. In addition, an original "thermo-chromatic" orthogonal sequence was developed, further improved by the use of a thioether chelated complex, where a divergent two-step synthesis can lead to a dihydrofuran or a dihydropyran depending only on the order by which the different stimuli, heat or light, are applied.
HISTONE DEACETYLASE INHIBITORS
-
Page 49, (2008/06/13)
The present invention provides histone deacetylase inhibitors of general formula (I), process for the preparation of such compounds and uses of the compounds in medicine.
Polymerisation inhibitor
-
, (2008/06/13)
A monomer composition, stabilized against premature polymerization, comprising: a) an ethylenically unsaturated monomer or mixture of monomers polymerizable by free radical initiation, and b) an effective amount, sufficient to inhibit premature polymerization of component (a) of a mixture of: i) 1 to 99% by weight, based on the total weight of components (i) and (ii), of a mixture of at least one aromatic amine and at least one organic acid in a molar ratio of 10:1 to 1:10, and ii) 99 to 1% by weight, based on the total weight of components (i) and (ii), of at least one stable radical compound.