Hermann, Dominik published the artcileSynthesis, Structure, and Reactivity of New Rhodium and Iridium Complexes, Bearing a Highly Electron-Donating PNP System. Iridium-Mediated Vinylic C-H Bond Activation, Synthetic Route of 338800-13-8, the publication is Organometallics (2002), 21(5), 812-818, database is CAplus.
Reaction of the new highly electron-donating PNP ligand [2,6-bis-(di-tert-butylphosphinomethyl)pyridine] (1) with [Rh(COE)2Cl]2 (COE = cyclooctene) at room temperature gave the neutral Rh(I) complex [Rh(PNP)Cl] (2). Unsaturated cationic complexes [Rh(PNP)(MeCN)]BF4 (3) and [Rh(PNP)(C2H4)]SO3CF3 (4) were obtained in reaction of 1 with [(COE)2Rh(MeCN)2]BF4 and [(C2H4)2Rh(THF)2]SO3CF3, resp. Upon reaction of the PNP ligand 1 with [Ir(COE)2Cl]2, facile vinylic C-H activation takes place, yielding the hydrido-vinyl complex [ClIr(PNP)(H)(C8H13)] (5). Also, coordination of ligand 1 to the cationic Ir complex [Ir(COD)2]BF4 (COD = cyclooctadiene) in RCN (R = CH3, CHMe2, CMe3) led to Ir insertion into a vinylic C-H bond, resulting in [(RCN)Ir(PNP)(H)(C8H11)]BF4 (6a–c). The hydrido-vinyl complexes 6a,c readily react with H2 (2 atm) at room temperature, affording the Ir dihydride complexes [(RCN)Ir(PNP)(H)2]BF4 (R = CH3, CMe3) (7a,b). Crystal structures were obtained for compounds 5,6a,6b, and 7a.
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 C23H43NP2, Synthetic Route of 338800-13-8.
Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem