So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Grasa, Gabriela A.; Zanotti-Gerosa, Antonio; Medlock, Jonathan A.; Hems, William P. researched the compound: (R)-2,2′,6,6′-Tetramethoxy-4,4′-bis(diphenylphosphino)-3,3′-bipyridine( cas:221012-82-4 ).Application In Synthesis of (R)-2,2′,6,6′-Tetramethoxy-4,4′-bis(diphenylphosphino)-3,3′-bipyridine.They published the article 《Asymmetric hydrogenation of isobutyrophenone Using a [(diphosphine)RuCl2(1,4-diamine)] catalyst》 about this compound( cas:221012-82-4 ) in Organic Letters. Keywords: ruthenium diphosphine diamine complex preparation hydrogenation catalyst; crystal structure ruthenium diphosphine diamine complex; ketone hydrogenation ruthenium diphosphine diamine complex catalyst. We’ll tell you more about this compound (cas:221012-82-4).
The use of three chiral 1,4-diamines in the [(diphosphine)RuCl2(diamine)] catalyst system is demonstrated in the hydrogenation of acetophenone. The use of a 1,4-diamine offers unique properties that allow tuning of the catalyst system. These include the 1st example of the use of a racemic diamine in combination with a chiral phosphine, which gives 95% ee in the hydrogenation of isobutyrophenone.
Here is a brief introduction to this compound(221012-82-4)Application In Synthesis of (R)-2,2′,6,6′-Tetramethoxy-4,4′-bis(diphenylphosphino)-3,3′-bipyridine, if you want to know about other compounds related to this compound(221012-82-4), you can read my other articles.
Reference:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider