Langer, Robert published the artcileLow-Pressure Hydrogenation of Carbon Dioxide Catalyzed by an Iron Pincer Complex Exhibiting Noble Metal Activity, Synthetic Route of 338800-13-8, the publication is Angewandte Chemie, International Edition (2011), 50(42), 9948-9952, S9948/1-S9948/13, database is CAplus and MEDLINE.
A new iron pincer complex as hydrogenation catalyst, trans-[(tBuPNP)Fe(H)2(CO)] (4) (tBuPNP = 2,6-bis(di-tert-butylphosphinomethyl)pyridine) is prepared and its crystal structure determined CO2 and sodium bicarbonate are efficiently hydrogenated in aqueous media at 80° under remarkably low pressures (6-10 bar), with turnover numbers up to 788 and turnover frequencies up to 156 h-1. The reaction likely proceeds through direct attack of the Fe hydride to the CO2, followed by replacement of the resulting formate ligand by H2O. Dihydrogen coordination, prior to heterolytic cleavage of H2 by hydroxide or dearomatization and subsequent proton migration are plausible pathways for the regeneration of 4. The hydrido formate complex [(tBu-PNP)Fe(H)(CO)(η1-OOCH)] (5) was characterized by multinuclear NMR spectroscopy and single-crystal x-ray diffraction.
Angewandte Chemie, International Edition 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