Wang, Chao-Yu published the artcilePalladium(II) complexes containing a bulky pyridinyl N-heterocyclic carbene ligand: Preparation and reactivity, HPLC of Formula: 89076-64-2, the publication is Journal of Organometallic Chemistry (2007), 692(18), 3976-3983, database is CAplus.
Coordination chem. of a pyridine imidazole-2-ylidene ligand (pyN-C) with sterically hindered substituents toward Pd(II) metal ions was studied. The Pd carbene complex [(C-pyN-C)Pd(η3-allyl)Cl] (3) was prepared via transmetalation from the corresponding Ag carbene complexes with [ClPd(η3-allyl)]2. Upon the abstraction of chloride, coordination of pyridinyl N becomes feasible to form [C,N-(pyN-C)Pd(η3-allyl)](BF4) (4). Ligand substitution reaction of 4 with PPh3 gave [(C-pyN-C)Pd(PPh3)(η3-allyl)](BF4), in which the pyridinyl N donor is substituted by the phosphine. This Pd complex appears to be base sensitive. Treatment of 4 with KOCMe3 causes decomposition to yield metal nanoparticles. Also, decomplexation of 4 takes place under H atm. to generate the carbene precursor, 1-(6-mesityl-2-picolyl)-3-mesitylimidazolium salt. Nevertheless, the Pd complex 4 shows good catalytic activity on the Suzuki-Miyaura and Mizoroki-Heck reactions.
Journal of Organometallic Chemistry published new progress about 89076-64-2. 89076-64-2 belongs to pyridine-derivatives, auxiliary class Pyridine,Nitro Compound,Benzene, name is 5-Nitro-2-phenylpyridine, and the molecular formula is C7H4ClIO2, HPLC of Formula: 89076-64-2.
Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem