van der Vlugt, Jarl Ivar published the artcileA Cationic AgI(PNPtBu) Species Acting as PNP Transfer Agent: Facile Synthesis of Pd(PNPtBu)(alkyl) Complexes and Their Reactivity Compared to PCPtBu Analogues, COA of Formula: C23H43NP2, the publication is Organometallics (2009), 28(24), 7025-7032, database is CAplus.
The straightforward synthesis of cationic complex I, [Ag(PNPtBu)]BF4 (PNPtBu = 1,2-bis[(di-tert-butylphosphino)methyl]pyridine), and its facile transmetalating properties toward gold and palladium are described. The corresponding Au complex [Au(PNPtBu)]2(BF4)2 (2) exists as a dimer in the solid state, as deduced by x-ray crystallog. The transmetalating properties were expanded to include the formation of Pd-alkyl species. Reaction of I with 0.5 equiv of Pd(allyl)(μ-Cl) dimer led to clean formation of the [Pd(PNPtBu)(η1-allyl)]BF4 complex 3. The analogous cationic Me (4), cyanophenyl (5), and chloro species (6) could also be prepared in good yields from appropriate Pd precursors via this transmetalation methodol. The mol. structures for complexes 3–5 were established by x-ray crystallog. Reaction of complexes 4 and 6 with NaN(SiMe3)2 led to deprotonation and dearomatization of the PNP backbone with formation of the neutral Pd species 7 and 8, which can be regarded as the diphosphino-monoamido N-ligated analogs of well-studied Pd(PCPtBu) complexes. These neutral Pd(PN–PtBu) complexes 7 and 8 displayed reasonable activity in the Suzuki-Miyaura coupling of phenylboronic acid pinacol ester and bromoarenes.
Organometallics 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 C20H40O2, COA of Formula: C23H43NP2.
Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem