Category: quinoxaline. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: (R)-2,2′,6,6′-Tetramethoxy-4,4′-bis(diphenylphosphino)-3,3′-bipyridine, is researched, Molecular C38H34N2O4P2, CAS is 221012-82-4, about Air-Stable Catalysts for Highly Efficient and Enantioselective Hydrogenation of Aromatic Ketones. Author is Wu, Jing; Chen, Hua; Kwok, Waihim; Guo, Rongwei; Zhou, Zhongyuan; Yeung, Chihung; Chan, Albert S. C..
A series of chiral trans-[RuCl2(bipyridinediylbisphosphine)(1,2-diamine)] complexes have been synthesized and characterized by NMR and single-crystal X-ray diffraction studies. These Ru complexes combined with (CH3)3COK in 2-propanol formed a very effective catalyst system for the hydrogenation of a diverse range of simple aromatic ketones with high activity (substrate-to-catalyst ratio up to 100,000) and excellent enantioselectivity (up to >99.9%). The catalyst system was also found to be stable in solution even under a normal atm.
Although many compounds look similar to this compound(221012-82-4)Category: quinoxaline, numerous studies have shown that this compound(SMILES:COC(C=C1P(C2=CC=CC=C2)C3=CC=CC=C3)=NC(OC)=C1C4=C(OC)N=C(OC)C=C4P(C5=CC=CC=C5)C6=CC=CC=C6), has unique advantages. If you want to know more about similar compounds, you can read my other articles.
Reference:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider