Feller, Moran’s team published research in Inorganic Chemistry in 49 | CAS: 338800-13-8

Inorganic Chemistry published new progress about 338800-13-8. 338800-13-8 belongs to pyridine-derivatives, auxiliary class Bis-phosphine Ligands, name is 2,6-Bis((di-tert-butylphosphino)methyl)pyridine, and the molecular formula is C23H43NP2, Synthetic Route of 338800-13-8.

Feller, Moran published the artcileCationic, Neutral, and Anionic PNP PdII and PtII Complexes: Dearomatization by Deprotonation and Double-Deprotonation of Pincer Systems, Synthetic Route of 338800-13-8, the publication is Inorganic Chemistry (2010), 49(4), 1615-1625, database is CAplus and MEDLINE.

Cationic, neutral, and anionic PdII and PtII PNP (PNP = 2,6-bis(di-tert-butylphosphinomethyl)pyridine) complexes were synthesized. The neutral, dearomatized complexes [(PNP*)MX] (PNP* = deprotonated PNP; M = Pd, Pt; X = Cl, Me) were prepared by deprotonation of the PNP methylene group of the corresponding cationic complexes [(PNP)MX][Cl] with 1 equiv of base (KN(SiMe3)2 or tBuOK), while the anionic complexes [(PNP**)MX]–Y+ (PNP** = double-deprotonated PNP; Y = Li, K) were prepared by deprotonation of the two methylene groups of the corresponding cationic complexes with either 2 equiv of KN(SiMe3)2 or an excess of MeLi. While the reaction of [(PNP)PtCl][Cl] with an excess of MeLi led only to the anionic complex without chloride substitution, reaction of [(PNP)PdCl][Cl] with an excess of MeLi led to the methylated anionic complex [(PNP**)PdMe]–Li+. NMR studies, x-ray structures, and d. functional theory (DFT) calculations reveal that the neutral complexes have a broken aromatic system with alternating single and double bonds, and the deprotonated arm is bound to the ring by an exocyclic C:C double bond. The anionic complexes are best described as a π system comprising the ring carbons conjugated with the exocyclic double bonds of the deprotonated arms. The neutral complexes are reversibly protonated to their cationic analogs by H2O or MeOH. The thermodn. parameters ΔH, ΔS, and ΔG for the reversible protonation of the neutral complexes by MeOH were obtained.

Inorganic Chemistry published new progress about 338800-13-8. 338800-13-8 belongs to pyridine-derivatives, auxiliary class Bis-phosphine Ligands, name is 2,6-Bis((di-tert-butylphosphino)methyl)pyridine, and the molecular formula is C23H43NP2, Synthetic Route of 338800-13-8.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem