On April 30, 2013, Zhao, Hongwu; Yue, Yuanyuan; Li, Hailong; Sheng, Zhihui; Yang, Zhao; Meng, Wei published an article.Name: [2,2′-Bipyridine]-3,3′-diamine The title of the article was Asymmetric synthesis of novel axially chiral 2,2′-bipyridine N,N’-dioxides bearing α-amino acid residues and their applications in enantioselective allylation of aromatic aldehydes with allyltrichlorosilane. And the article contained the following:
A series of novel axially chiral 2,2′-bipyridine N,N’-dioxides bearing C1 or C2-symmetry were synthesized by the use of enantiopure α-amino acids as chiral sources. The absolute stereochem. of the axial chirality of these organocatalysts was clearly assigned by CD measurements together with literature protocols. The reactivities and enantioselectivities of these organocatalysts were examined in the reactions of aromatic aldehydes with allyltrichlorosilane, thus providing the desired products with moderate yields and enantioselectivies. The experimental process involved the reaction of [2,2′-Bipyridine]-3,3′-diamine(cas: 75449-26-2).Name: [2,2′-Bipyridine]-3,3′-diamine
The Article related to amino acid bipyridine oxide asym synthesis allylation catalyst, aromatic aldehyde allylchlorosilane enantioselective allylation bipyridine oxide catalyst, benzylic homoallyl alc asym synthesis and other aspects.Name: [2,2′-Bipyridine]-3,3′-diamine