CpMn(CO)2ER (E = S, Se) compounds [1] belong to the rare radical derivatives of the CpMn(CO)2 fragment. We describe herein the syntheses, electrochemistry, and organometallicreactions of Cp★Mn(CO)2SR 1 (1a: R = t-C4H9, 1b: R = 2-adamantyl) and CpM(CO)2SePh (2).
S-Substituted-2-thioadenosines represented by the formula (I): ##SPC1## wherein R is as defined hereinafter, useful as a platelet aggregation inhibitor and a coronary vasodilator.
Umpolung Strategy for α‐Functionalization of Aldehydes for the Addition of Thiols and other Nucleophiles
作者:Jakob Blom、Gabriel J. Reyes‐Rodríguez、Henriette N. Tobiesen、Johannes N. Lamhauge、Marc V. Iversen、Casper L. Barløse、Niels Hammer、Matilde Rusbjerg、Karl Anker Jørgensen
DOI:10.1002/anie.201911793
日期:2019.12.2
Nucleophile-nucleophile coupling is a challenging transformation in organic chemistry. Herein we present a novel umpolung strategy for α-functionalization of aldehydes with nucleophiles. The strategy uses organocatalytic enamine activation and quinone-promoted oxidation to access O-bound quinol-intermediates that undergo nucleophilic substitution reactions. These quinol-intermediates react with different
The present invention provides a metal complex that has excellent durability, and a device and the like having excellent durability that uses such a metal complex. Specifically, the present invention provides a metal complex comprising (a) a polydentate ligand having denticity of five or more that includes a heteroaromatic ring which contains two or more atoms selected from the group consisting of a nitrogen atom, an oxygen atom, and a sulfur atom, and (b) an ion of a metal selected from the group consisting of cerium, praseodymium, ytterbium, and lutetium; a composition comprising the metal complex and a charge transport material; an organic thin film obtained by using the metal complex or composition; and a device obtained by using the metal complex, composition, or organic thin film.
Free Radical Substitution Reactions of Sulfur Monochloride. A Limited Synthesis of Mercaptans
作者:Dennis D. Tanner、Brian G. Brownlee
DOI:10.1139/v73-502
日期:1973.10.15
The photolysis of sulfur monochloride with a series of saturated aliphatic hydrocarbons yielded alkyl chlorides, di- and polysulfides, hydrogen chloride, and elemental sulfur. The free radical substitutionreactions leading to the production of alkyl chloride and the di- and polysulfides were shown to proceed via a chlorine atom abstraction reaction. The major products, the di- and polysulfides could