Oechsle, Peter published the artcileConcise Synthesis of Dithiophene Derivatives by a Palladium- Catalyzed Multiple C-S Cross Coupling/Cyclization Sequence, Safety of 2-Amino-3,5-dibromo-6-chloropyrazine, the main research area is bisalkyne dihalo palladium cross coupling cyclization catalyst; dithiophene fused preparation.
The facile synthesis of new sulfur-containing fused heterocycles, e.g., I, was achieved by a two-fold domino reaction consisting of a carbon-sulfur cross-coupling, followed by a 5-endo-dig cyclization. Using this strategy a series of benzo-, thiopheno-, pyridine- and pyrazino-dithienoacenes with electron-neutral (-C6H4-n-Hex), electron-rich (-C6H4-NPh2) and electron-deficient (-C4H3N2) substituents was synthesized in high yields. The developed method was applied in the efficient synthesis of a complex donor-acceptor mol. The photophys. and electrochem. properties of the products were analyzed by UV-VIS/luminescence spectroscopy and cyclic voltammetry.
Advanced Synthesis & Catalysis published new progress about Aromatic hydrocarbons, aryl alkynes Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation) (dihalo dialkynes). 566205-01-4 belongs to class pyrazines, name is 2-Amino-3,5-dibromo-6-chloropyrazine, and the molecular formula is C4H2Br2ClN3, Safety of 2-Amino-3,5-dibromo-6-chloropyrazine.