Herrmann, Wolfgang A.; Reisinger, Claus-Peter; Oefele, Karl; Brossmer, Christoph; Beller, Matthias; Fischer, Hartmut published an article about the compound: trans-Di-μ-acetatobis[2-[bis(2-methylphenyl)phosphino]benzyl]dipalladium( cas:172418-32-5,SMILESS:CC1=C([P]2([Pd+2]3([CH2-]C4=C2C=CC=C4)[O-]/C(C)=O[Pd+2]5([O-]/C(C)=O3)[P](C6=C(C)C=CC=C6)(C7=C([CH2-]5)C=CC=C7)C8=C(C)C=CC=C8)C9=C(C)C=CC=C9)C=CC=C1 ).SDS of cas: 172418-32-5. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:172418-32-5) through the article.
An efficient synthesis of tolane derivatives from substituted aryl bromides and phenylacetylene catalyzed by air- and moisture-stable phospha-palladacycles is described. This procedure works without addition of cupric salts. Reaction rates and yields are sensitive to the nature of solvent and base. Mechanistic features are discussed for a catalytic cycle with Pd(II) and Pd(IV) intermediates. Constitutional stability of the palladacyclic catalyst under reaction conditions is likely; precipitation of palladium black is not observed
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Reference:
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate