Niu, Weiling; Chen, Li; Hu, Jiayuan; Chen, Hua; Li, Xianjun published the article 《Asymmetric hydroformylation of styrene catalyzed by P-Phos-Rh complexes [P-Phos = 4,4′,6,6′-tetramethoxy-2,2′-bis(diphenylphosphino)-1,1′-bipyridine]》. Keywords: styrene asym hydroformylation catalyst rhodium chiral diphosphine.They researched the compound: (R)-2,2′,6,6′-Tetramethoxy-4,4′-bis(diphenylphosphino)-3,3′-bipyridine( cas:221012-82-4 ).Computed Properties of C38H34N2O4P2. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:221012-82-4) here.
Rh complex was prepared by complexation of (R)-P-Phos with the available Rh precursor and used for the asym. hydroformylation of styrene. The effects of total pressure, temperature, and the ratio of phosphine/Rh on catalytic activity, chemo- and enantioselectivity were discussed. (R)-P-Phos-Rh showed higher activity and regioselectivity and the enantioselectivity was as much as that catalyzed by -BINAP-Rh (BINAP = 2,2′-di(diphenylphosphino)-1,1′-bipyridine) in the in situ asym. hydroformylation of styrene.
After consulting a lot of data, we found that this compound(221012-82-4)Computed Properties of C38H34N2O4P2 can be used in many types of reactions. And in most cases, this compound has more advantages.
Reference:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider