10002-30-9Relevant articles and documents
Reductive Cleavage of Aromatic Disulfides Using a Polymer-Supported Phosphine Reagent
Amos, Richard A.,Fawcett, Shayne M.
, p. 2637 - 2639 (1984)
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Corey,Clark
, p. 2875,2876 (1979)
S-(2-pyridinyl)-1,1,3,3-tetramethylthiouronium hexafluorophosphate. A new reagent for the synthesis of 2-pyridinethiol esters
Scardovi, Noemi,Garner, Philip P.,Protasiewicz, John D.
, p. 1633 - 1635 (2003)
(Matrix presented) A new thiouronium-based reagent for the synthesis of 2-pyridinethiol esters under non-nucleophilic conditions from the corresponding carboxylic acids was developed. The resulting procedure enables the preparation of previously unavailable α,β-unsaturated 2-pyridinethiol esters as well as their aliphatic and aromatic counterparts.
Ketones from Nickel-Catalyzed Decarboxylative, Non-Symmetric Cross-Electrophile Coupling of Carboxylic Acid Esters
Wang, Jiang,Cary, Brian P.,Beyer, Peyton D.,Gellman, Samuel H.,Weix, Daniel J.
supporting information, p. 12081 - 12085 (2019/08/12)
Synthesis of the C?C bonds of ketones relies upon one high-availability reagent (carboxylic acids) and one low-availability reagent (organometallic reagents or alkyl iodides). We demonstrate here a ketone synthesis that couples two different carboxylic acid esters, N-hydroxyphthalimide esters and S-2-pyridyl thioesters, to form aryl alkyl and dialkyl ketones in high yields. The keys to this approach are the use of a nickel catalyst with an electron-poor bipyridine or terpyridine ligand, a THF/DMA mixed solvent system, and ZnCl2 to enhance the reactivity of the NHP ester. The resulting reaction can be used to form ketones that have previously been difficult to access, such as hindered tertiary/tertiary ketones with strained rings and ketones with α-heteroatoms. The conditions can be employed in the coupling of complex fragments, including a 20-mer peptide fragment analog of Exendin(9–39) on solid support.
Photoinduced Dynamics of Bis-dipyrrinato-palladium(II) and Porphodimethenato-palladium(II) Complexes: Governing Near Infrared Phosphorescence by Structural Restriction
Riese, Stefan,Holzapfel, Marco,Schmiedel, Alexander,Gert, Ingo,Schmidt, David,Würthner, Frank,Lambert, Christoph
supporting information, p. 12480 - 12488 (2018/10/25)
Although superficially similar, the bis-dipyrrinato-palladium(II) complex 1 and the bridged porphodimethenato-palladium(II) complex 2 possess dramatically different structures in the ground state (proved by X-ray structure analysis) and in the singlet and