Electric Literature of 166330-10-5, Chemistry can be defined as the study of matter and the changes it undergoes. You¡¯ll sometimes hear it called the central science because it is the connection between physics and all the other sciences, starting with biology.166330-10-5, Name is (Oxybis(2,1-phenylene))bis(diphenylphosphine), molecular formula is C36H28OP2. In a patent, introducing its new discovery.
Synthesis of novel nitrogen-containing polymers by Pd(0)-catalyzed polycondensation of propargylic carbonates and bifunctional nitrogen nucleophiles
A Pd(0)-catalyzed polycondensation of propargylic carbonates and bifunctional nitrogen nucleophiles was investigated. The polycondensation was carried out in THF at 80 C for 20 h in the presence of a Pd(0) catalyst. The Pd(0)-catalyzed polycondensation with bifunctional nitrogen nucleophiles proceeded successfully when bis[(2-diphenylphosphino)phenyl]ether (DPEphos) was used as the ligand. N-monoalkylated bifunctional benzenesulfonamides and pyromellitic diimide could be used in the polycondensation. Aliphatic and aromatic amines did not afford the corresponding polymers at all. The molecular weights of the obtained polymers were higher when propargylic carbonates having an aryl group on the acetylenic terminal carbon were used.
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Reference£º
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